97900900 has 18 divisors (see below), whose sum is σ = 212445170. Its totient is φ = 39160320.

The previous prime is 97900889. The next prime is 97900919. The reversal of 97900900 is 900979.

It can be written as a sum of positive squares in 3 ways, for example, as 18939904 + 78960996 = 4352^2 + 8886^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 489405 + ... + 489604.

Almost surely, 2^97900900 is an apocalyptic number.

It is an amenable number.

97900900 is an abundant number, since it is smaller than the sum of its proper divisors (114544270).

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

97900900 is a wasteful number, since it uses less digits than its factorization.

97900900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979023 (or 979016 counting only the distinct ones).

The product of its (nonzero) digits is 5103, while the sum is 34.

The square root of 97900900 is about 9894.4883647413. The cubic root of 97900900 is about 460.8881705900. Note that the first 3 decimals are identical.

The spelling of 97900900 in words is "ninety-seven million, nine hundred thousand, nine hundred".