97940188 has 6 divisors (see below), whose sum is σ = 171395336. Its totient is φ = 48970092.

The previous prime is 97940153. The next prime is 97940207. The reversal of 97940188 is 88104979.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12242520 + ... + 12242527.

Almost surely, 2^97940188 is an apocalyptic number.

It is an amenable number.

97940188 is a deficient number, since it is larger than the sum of its proper divisors (73455148).

97940188 is a wasteful number, since it uses less digits than its factorization.

97940188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24485051 (or 24485049 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 97940188 is about 9896.4735133279. The cubic root of 97940188 is about 460.9498143978.

The spelling of 97940188 in words is "ninety-seven million, nine hundred forty thousand, one hundred eighty-eight".