974909931 has 64 divisors (see below), whose sum is σ = 1515386880. Its totient is φ = 553512960.

The previous prime is 974909927. The next prime is 974909933. The reversal of 974909931 is 139909479.

It is not a de Polignac number, because 974909931 - 2² = 974909927 is a prime.

It is a super-2 number, since 2×974909931² = 1900898747124849522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (974909933) 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 63 ways as a sum of consecutive naturals, for example, 2105406 + ... + 2105868.

It is an arithmetic number, because the mean of its divisors is an integer number (23677920).

Almost surely, 2^974909931 is an apocalyptic number.

974909931 is a deficient number, since it is larger than the sum of its proper divisors (540476949).

974909931 is a wasteful number, since it uses less digits than its factorization.

974909931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596.

The product of its (nonzero) digits is 551124, while the sum is 51.

The square root of 974909931 is about 31223.5477004135. The cubic root of 974909931 is about 991.5657063550.

The spelling of 974909931 in words is "nine hundred seventy-four million, nine hundred nine thousand, nine hundred thirty-one".