9947340 has 144 divisors (see below), whose sum is σ = 33818400. Its totient is φ = 2426112.

The previous prime is 9947323. The next prime is 9947369. The reversal of 9947340 is 437499.

9947340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 9947295 and 9947304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 91206 + ... + 91314.

It is an arithmetic number, because the mean of its divisors is an integer number (234850).

Almost surely, 2^9947340 is an apocalyptic number.

9947340 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9947340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16909200).

9947340 is an abundant number, since it is smaller than the sum of its proper divisors (23871060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9947340 is a wasteful number, since it uses less digits than its factorization.

9947340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 9947340 is about 3153.9403925883. The cubic root of 9947340 is about 215.0646281283.

The spelling of 9947340 in words is "nine million, nine hundred forty-seven thousand, three hundred forty".