956669957 has 4 divisors (see below), whose sum is σ = 957787116. Its totient is φ = 955552800.

The previous prime is 956669941. The next prime is 956669963. The reversal of 956669957 is 759966659.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 775121281 + 181548676 = 27841^2 + 13474^2 .

It is a cyclic number.

It is not a de Polignac number, because 956669957 - 2⁴ = 956669941 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 956669957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (956669257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 557294 + ... + 559007.

It is an arithmetic number, because the mean of its divisors is an integer number (239446779).

Almost surely, 2^956669957 is an apocalyptic number.

It is an amenable number.

956669957 is a deficient number, since it is larger than the sum of its proper divisors (1117159).

956669957 is a wasteful number, since it uses less digits than its factorization.

956669957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117158.

The product of its digits is 27556200, while the sum is 62.

The square root of 956669957 is about 30930.0817490029. The cubic root of 956669957 is about 985.3428704920.

The spelling of 956669957 in words is "nine hundred fifty-six million, six hundred sixty-nine thousand, nine hundred fifty-seven".