9728456 has 32 divisors (see below), whose sum is σ = 19872000. Its totient is φ = 4447296.

The previous prime is 9728443. The next prime is 9728489. The reversal of 9728456 is 6548279.

It is a super-2 number, since 2×9728456² = 189285712287872, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3305 + ... + 5511.

It is an arithmetic number, because the mean of its divisors is an integer number (621000).

Almost surely, 2^9728456 is an apocalyptic number.

It is an amenable number.

9728456 is an abundant number, since it is smaller than the sum of its proper divisors (10143544).

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

9728456 is a wasteful number, since it uses less digits than its factorization.

9728456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2261 (or 2257 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 9728456 is about 3119.0472904398. The cubic root of 9728456 is about 213.4754673477.

The spelling of 9728456 in words is "nine million, seven hundred twenty-eight thousand, four hundred fifty-six".