97718772 has 12 divisors (see below), whose sum is σ = 228010496. Its totient is φ = 32572920.

The previous prime is 97718759. The next prime is 97718773. The reversal of 97718772 is 27781779.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97718773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4071604 + ... + 4071627.

Almost surely, 2^97718772 is an apocalyptic number.

It is an amenable number.

97718772 is an abundant number, since it is smaller than the sum of its proper divisors (130291724).

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

97718772 is a wasteful number, since it uses less digits than its factorization.

97718772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8143238 (or 8143236 counting only the distinct ones).

The product of its digits is 345744, while the sum is 48.

The square root of 97718772 is about 9885.2805726494. The cubic root of 97718772 is about 460.6021917854.

The spelling of 97718772 in words is "ninety-seven million, seven hundred eighteen thousand, seven hundred seventy-two".