974976813 has 6 divisors (see below), whose sum is σ = 1408299854. Its totient is φ = 649984536.

The previous prime is 974976791. The next prime is 974976833. The reversal of 974976813 is 318679479.

It is a happy number.

974976813 is a `hidden beast` number, since 97 + 497 + 68 + 1 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 865418724 + 109558089 = 29418^2 + 10467^2 .

It is not a de Polignac number, because 974976813 - 2¹² = 974972717 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 974976813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (974976833) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54165370 + ... + 54165387.

Almost surely, 2^974976813 is an apocalyptic number.

It is an amenable number.

974976813 is a deficient number, since it is larger than the sum of its proper divisors (433323041).

974976813 is a wasteful number, since it uses less digits than its factorization.

974976813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108330763 (or 108330760 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 54.

The square root of 974976813 is about 31224.6187006343. The cubic root of 974976813 is about 991.5883807167.

The spelling of 974976813 in words is "nine hundred seventy-four million, nine hundred seventy-six thousand, eight hundred thirteen".