975312899 has 16 divisors (see below), whose sum is σ = 1133346816. Its totient is φ = 829468800.

The previous prime is 975312857. The next prime is 975312901. The reversal of 975312899 is 998213579.

It is a Cunningham number, because it is equal to 31230²-1.

It is a cyclic number.

It is not a de Polignac number, because 975312899 - 2⁸ = 975312643 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 975312899.

It is not an unprimeable number, because it can be changed into a prime (975312829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15614 + ... + 46844.

It is an arithmetic number, because the mean of its divisors is an integer number (70834176).

Almost surely, 2^975312899 is an apocalyptic number.

975312899 is a deficient number, since it is larger than the sum of its proper divisors (158033917).

975312899 is a wasteful number, since it uses less digits than its factorization.

975312899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31426.

The product of its digits is 1224720, while the sum is 53.

The square root of 975312899 is about 31229.9999839898. Note that the first 4 decimals coincide. The cubic root of 975312899 is about 991.7023050284.

The spelling of 975312899 in words is "nine hundred seventy-five million, three hundred twelve thousand, eight hundred ninety-nine".