972865164 has 12 divisors (see below), whose sum is σ = 2270018744. Its totient is φ = 324288384.

The previous prime is 972865163. The next prime is 972865177. The reversal of 972865164 is 461568279.

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

It is not an unprimeable number, because it can be changed into a prime (972865163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40536037 + ... + 40536060.

Almost surely, 2^972865164 is an apocalyptic number.

It is an amenable number.

972865164 is an abundant number, since it is smaller than the sum of its proper divisors (1297153580).

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

972865164 is a wasteful number, since it uses less digits than its factorization.

972865164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81072104 (or 81072102 counting only the distinct ones).

The product of its digits is 725760, while the sum is 48.

The square root of 972865164 is about 31190.7865242286. The cubic root of 972865164 is about 990.8719875730.

The spelling of 972865164 in words is "nine hundred seventy-two million, eight hundred sixty-five thousand, one hundred sixty-four".