97890992 has 10 divisors (see below), whose sum is σ = 189663828. Its totient is φ = 48945488.

The previous prime is 97890977. The next prime is 97891009. The reversal of 97890992 is 29909879.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3059078 + ... + 3059109.

Almost surely, 2^97890992 is an apocalyptic number.

It is an amenable number.

97890992 is a deficient number, since it is larger than the sum of its proper divisors (91772836).

97890992 is a wasteful number, since it uses less digits than its factorization.

97890992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6118195 (or 6118189 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 53.

The square root of 97890992 is about 9893.9876692868. The cubic root of 97890992 is about 460.8726220981.

The spelling of 97890992 in words is "ninety-seven million, eight hundred ninety thousand, nine hundred ninety-two".