97870172 has 6 divisors (see below), whose sum is σ = 171272808. Its totient is φ = 48935084.

The previous prime is 97870147. The next prime is 97870181. The reversal of 97870172 is 27107879.

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, 12233768 + ... + 12233775.

It is an arithmetic number, because the mean of its divisors is an integer number (28545468).

Almost surely, 2^97870172 is an apocalyptic number.

It is an amenable number.

97870172 is a deficient number, since it is larger than the sum of its proper divisors (73402636).

97870172 is a wasteful number, since it uses less digits than its factorization.

97870172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24467547 (or 24467545 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 41.

The square root of 97870172 is about 9892.9354592052. The cubic root of 97870172 is about 460.8399461315.

The spelling of 97870172 in words is "ninety-seven million, eight hundred seventy thousand, one hundred seventy-two".