972731944 has 32 divisors (see below), whose sum is σ = 1843662240. Its totient is φ = 481118400.

The previous prime is 972731941. The next prime is 972731951. The reversal of 972731944 is 449137279.

It is a junction number, because it is equal to n+sod(n) for n = 972731894 and 972731903.

It is not an unprimeable number, because it can be changed into a prime (972731941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290359 + ... + 293689.

It is an arithmetic number, because the mean of its divisors is an integer number (57614445).

Almost surely, 2^972731944 is an apocalyptic number.

It is an amenable number.

972731944 is a deficient number, since it is larger than the sum of its proper divisors (870930296).

972731944 is a wasteful number, since it uses less digits than its factorization.

972731944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3721 (or 3717 counting only the distinct ones).

The product of its digits is 381024, while the sum is 46.

The square root of 972731944 is about 31188.6508845766. The cubic root of 972731944 is about 990.8267569159.

The spelling of 972731944 in words is "nine hundred seventy-two million, seven hundred thirty-one thousand, nine hundred forty-four".