956318813 has 4 divisors (see below), whose sum is σ = 965256480. Its totient is φ = 947381148.

The previous prime is 956318801. The next prime is 956318837. The reversal of 956318813 is 318813659.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 318813659 = 137 ⋅2327107.

It is a cyclic number.

It is not a de Polignac number, because 956318813 - 2¹⁸ = 956056669 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 (956318843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4468673 + ... + 4468886.

It is an arithmetic number, because the mean of its divisors is an integer number (241314120).

Almost surely, 2^956318813 is an apocalyptic number.

It is an amenable number.

956318813 is a deficient number, since it is larger than the sum of its proper divisors (8937667).

956318813 is a wasteful number, since it uses less digits than its factorization.

956318813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8937666.

The product of its digits is 155520, while the sum is 44.

The square root of 956318813 is about 30924.4048123808. The cubic root of 956318813 is about 985.2222996251. Note that the first 4 decimals are identical.

The spelling of 956318813 in words is "nine hundred fifty-six million, three hundred eighteen thousand, eight hundred thirteen".