972664724 has 12 divisors (see below), whose sum is σ = 1802290644. Its totient is φ = 457724544.

The previous prime is 972664717. The next prime is 972664747. The reversal of 972664724 is 427466279.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 825527824 + 147136900 = 28732^2 + 12130^2 .

It is a congruent number.

It is an unprimeable number.

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, 7151879 + ... + 7152014.

It is an arithmetic number, because the mean of its divisors is an integer number (150190887).

Almost surely, 2^972664724 is an apocalyptic number.

It is an amenable number.

972664724 is a deficient number, since it is larger than the sum of its proper divisors (829625920).

972664724 is a wasteful number, since it uses less digits than its factorization.

972664724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14303914 (or 14303912 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 47.

The square root of 972664724 is about 31187.5732303749. The cubic root of 972664724 is about 990.8039329134.

The spelling of 972664724 in words is "nine hundred seventy-two million, six hundred sixty-four thousand, seven hundred twenty-four".