97990156 has 36 divisors (see below), whose sum is σ = 191637040. Its totient is φ = 43797600.

The previous prime is 97990133. The next prime is 97990177. The reversal of 97990156 is 65109979.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27865 + ... + 31183.

Almost surely, 2^97990156 is an apocalyptic number.

It is an amenable number.

97990156 is a deficient number, since it is larger than the sum of its proper divisors (93646884).

97990156 is a wasteful number, since it uses less digits than its factorization.

97990156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3406 (or 3393 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 46.

The square root of 97990156 is about 9898.9977270429. The cubic root of 97990156 is about 461.0281915682.

The spelling of 97990156 in words is "ninety-seven million, nine hundred ninety thousand, one hundred fifty-six".