972511930 has 16 divisors (see below), whose sum is σ = 1885177224. Its totient is φ = 359081280.

The previous prime is 972511909. The next prime is 972511961. The reversal of 972511930 is 39115279.

It can be written as a sum of positive squares in 4 ways, for example, as 875627281 + 96884649 = 29591^2 + 9843^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 972511930.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3740301 + ... + 3740560.

Almost surely, 2^972511930 is an apocalyptic number.

972511930 is a deficient number, since it is larger than the sum of its proper divisors (912665294).

972511930 is a wasteful number, since it uses less digits than its factorization.

972511930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7480881.

The product of its (nonzero) digits is 17010, while the sum is 37.

The square root of 972511930 is about 31185.1235367122. The cubic root of 972511930 is about 990.7520490456.

The spelling of 972511930 in words is "nine hundred seventy-two million, five hundred eleven thousand, nine hundred thirty".