97972002 has 18 divisors (see below), whose sum is σ = 212363697. Its totient is φ = 32643336.

The previous prime is 97971983. The next prime is 97972013. The reversal of 97972002 is 20027979.

It can be written as a sum of positive squares in 2 ways, for example, as 95472441 + 2499561 = 9771^2 + 1581^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=6999.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 40828 + ... + 43160.

Almost surely, 2^97972002 is an apocalyptic number.

97972002 is an abundant number, since it is smaller than the sum of its proper divisors (114391695).

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

97972002 is an equidigital number, since it uses as much as digits as its factorization.

97972002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4674 (or 2338 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 97972002 is about 9898.0807230493. The cubic root of 97972002 is about 460.9997192433. Note that the first 3 decimals are identical.

The spelling of 97972002 in words is "ninety-seven million, nine hundred seventy-two thousand, two".