9784656 has 120 divisors (see below), whose sum is σ = 33194304. Its totient is φ = 2626560.

The previous prime is 9784633. The next prime is 9784657. The reversal of 9784656 is 6564879.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9784657) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16851 + ... + 17421.

Almost surely, 2^9784656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9784656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16597152).

9784656 is an abundant number, since it is smaller than the sum of its proper divisors (23409648).

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

9784656 is a wasteful number, since it uses less digits than its factorization.

9784656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609 (or 600 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 9784656 is about 3128.0434779587. The cubic root of 9784656 is about 213.8857514604.

It can be divided in two parts, 9784 and 656, that added together give a triangular number (10440 = T₁₄₄).

The spelling of 9784656 in words is "nine million, seven hundred eighty-four thousand, six hundred fifty-six".