972959631 has 20 divisors (see below), whose sum is σ = 1513413912. Its totient is φ = 555972816.

The previous prime is 972959629. The next prime is 972959641. The reversal of 972959631 is 136959279.

It is a happy number.

It is not a de Polignac number, because 972959631 - 2¹ = 972959629 is a prime.

It is a super-2 number, since 2×972959631² = 1893300887111312322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972959641) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 60336 + ... + 74741.

Almost surely, 2^972959631 is an apocalyptic number.

972959631 is a deficient number, since it is larger than the sum of its proper divisors (540454281).

972959631 is an equidigital number, since it uses as much as digits as its factorization.

972959631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135108 (or 135087 counting only the distinct ones).

The product of its digits is 918540, while the sum is 51.

The square root of 972959631 is about 31192.3008288905. The cubic root of 972959631 is about 990.9040583669.

The spelling of 972959631 in words is "nine hundred seventy-two million, nine hundred fifty-nine thousand, six hundred thirty-one".