972185764 has 12 divisors (see below), whose sum is σ = 1855991088. Its totient is φ = 441902600.

The previous prime is 972185737. The next prime is 972185777. The reversal of 972185764 is 467581279.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11047522 + ... + 11047609.

It is an arithmetic number, because the mean of its divisors is an integer number (154665924).

Almost surely, 2^972185764 is an apocalyptic number.

It is an amenable number.

972185764 is a deficient number, since it is larger than the sum of its proper divisors (883805324).

972185764 is a wasteful number, since it uses less digits than its factorization.

972185764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22095146 (or 22095144 counting only the distinct ones).

The product of its digits is 846720, while the sum is 49.

The square root of 972185764 is about 31179.8935854502. The cubic root of 972185764 is about 990.6412755061.

The spelling of 972185764 in words is "nine hundred seventy-two million, one hundred eighty-five thousand, seven hundred sixty-four".