97791864 has 32 divisors (see below), whose sum is σ = 244723920. Its totient is φ = 32564736.

The previous prime is 97791839. The next prime is 97791899. The reversal of 97791864 is 46819779.

It is a congruent number.

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, 41502 + ... + 43794.

Almost surely, 2^97791864 is an apocalyptic number.

It is an amenable number.

97791864 is an abundant number, since it is smaller than the sum of its proper divisors (146932056).

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

97791864 is a wasteful number, since it uses less digits than its factorization.

97791864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4079 (or 4075 counting only the distinct ones).

The product of its digits is 762048, while the sum is 51.

The square root of 97791864 is about 9888.9768934911. The cubic root of 97791864 is about 460.7170040651.

The spelling of 97791864 in words is "ninety-seven million, seven hundred ninety-one thousand, eight hundred sixty-four".