97921088 has 28 divisors (see below), whose sum is σ = 205744572. Its totient is φ = 46080000.

The previous prime is 97921073. The next prime is 97921099. The reversal of 97921088 is 88012979.

It can be written as a sum of positive squares in 2 ways, for example, as 92006464 + 5914624 = 9592^2 + 2432^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43913 + ... + 46088.

Almost surely, 2^97921088 is an apocalyptic number.

It is an amenable number.

97921088 is an abundant number, since it is smaller than the sum of its proper divisors (107823484).

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

97921088 is a wasteful number, since it uses less digits than its factorization.

97921088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90030 (or 90020 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 44.

The square root of 97921088 is about 9895.5084760714. The cubic root of 97921088 is about 460.9198481023.

It can be divided in two parts, 9792 and 1088, that multiplied together give a square (10653696 = 3264²).

The spelling of 97921088 in words is "ninety-seven million, nine hundred twenty-one thousand, eighty-eight".