9916290 has 64 divisors (see below), whose sum is σ = 27849600. Its totient is φ = 2503872.

The previous prime is 9916279. The next prime is 9916297. The reversal of 9916290 is 926199.

9916290 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (9916297) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4164 + ... + 6096.

It is an arithmetic number, because the mean of its divisors is an integer number (435150).

Almost surely, 2^9916290 is an apocalyptic number.

9916290 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 9916290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13924800).

9916290 is an abundant number, since it is smaller than the sum of its proper divisors (17933310).

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

9916290 is a wasteful number, since it uses less digits than its factorization.

9916290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1968 (or 1962 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 9916290 is about 3149.0141314386. The cubic root of 9916290 is about 214.8406246311.

The spelling of 9916290 in words is "nine million, nine hundred sixteen thousand, two hundred ninety".