97579972 has 36 divisors (see below), whose sum is σ = 209107920. Its totient is φ = 39617424.

The previous prime is 97579969. The next prime is 97579973. The reversal of 97579972 is 27997579.

It is not an unprimeable number, because it can be changed into a prime (97579973) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9378 + ... + 16825.

Almost surely, 2^97579972 is an apocalyptic number.

It is an amenable number.

97579972 is an abundant number, since it is smaller than the sum of its proper divisors (111527948).

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

97579972 is a wasteful number, since it uses less digits than its factorization.

97579972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26240 (or 26231 counting only the distinct ones).

The product of its digits is 2500470, while the sum is 55.

The square root of 97579972 is about 9878.2575386553. The cubic root of 97579972 is about 460.3840082630.

The spelling of 97579972 in words is "ninety-seven million, five hundred seventy-nine thousand, nine hundred seventy-two".