972170398 has 16 divisors (see below), whose sum is σ = 1545436800. Its totient is φ = 457076736.

The previous prime is 972170389. The next prime is 972170413. The reversal of 972170398 is 893071279.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26803 + ... + 51601.

It is an arithmetic number, because the mean of its divisors is an integer number (96589800).

Almost surely, 2^972170398 is an apocalyptic number.

972170398 is a deficient number, since it is larger than the sum of its proper divisors (573266402).

972170398 is a wasteful number, since it uses less digits than its factorization.

972170398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25971.

The product of its (nonzero) digits is 190512, while the sum is 46.

The square root of 972170398 is about 31179.6471756818. The cubic root of 972170398 is about 990.6360562450.

The spelling of 972170398 in words is "nine hundred seventy-two million, one hundred seventy thousand, three hundred ninety-eight".