97856920 has 48 divisors (see below), whose sum is σ = 256130640. Its totient is φ = 33550272.

The previous prime is 97856911. The next prime is 97856939. The reversal of 97856920 is 2965879.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23004 + ... + 26923.

It is an arithmetic number, because the mean of its divisors is an integer number (5336055).

Almost surely, 2^97856920 is an apocalyptic number.

It is an amenable number.

97856920 is an abundant number, since it is smaller than the sum of its proper divisors (158273720).

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

97856920 is a wasteful number, since it uses less digits than its factorization.

97856920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49952 (or 49941 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 97856920 is about 9892.2656656602. The cubic root of 97856920 is about 460.8191453554.

The spelling of 97856920 in words is "ninety-seven million, eight hundred fifty-six thousand, nine hundred twenty".