9972904 has 32 divisors (see below), whose sum is σ = 19530720. Its totient is φ = 4769856.

The previous prime is 9972811. The next prime is 9972913. The reversal of 9972904 is 4092799.

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, 17959 + ... + 18505.

It is an arithmetic number, because the mean of its divisors is an integer number (610335).

Almost surely, 2^9972904 is an apocalyptic number.

It is an amenable number.

9972904 is a deficient number, since it is larger than the sum of its proper divisors (9557816).

9972904 is a wasteful number, since it uses less digits than its factorization.

9972904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649 (or 645 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 9972904 is about 3157.9905003024. The cubic root of 9972904 is about 215.2487044446.

The spelling of 9972904 in words is "nine million, nine hundred seventy-two thousand, nine hundred four".