956940813 has 6 divisors (see below), whose sum is σ = 1382247854. Its totient is φ = 637960536.

The previous prime is 956940773. The next prime is 956940851. The reversal of 956940813 is 318049659.

It is a happy number.

956940813 is a `hidden beast` number, since 9 + 569 + 4 + 0 + 81 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 890306244 + 66634569 = 29838^2 + 8163^2 .

It is not a de Polignac number, because 956940813 - 2⁶ = 956940749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (956940713) 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, 53163370 + ... + 53163387.

Almost surely, 2^956940813 is an apocalyptic number.

It is an amenable number.

956940813 is a deficient number, since it is larger than the sum of its proper divisors (425307041).

956940813 is a wasteful number, since it uses less digits than its factorization.

956940813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106326763 (or 106326760 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 956940813 is about 30934.4599597278. The cubic root of 956940813 is about 985.4358530451.

The spelling of 956940813 in words is "nine hundred fifty-six million, nine hundred forty thousand, eight hundred thirteen".