957521994 has 32 divisors (see below), whose sum is σ = 2249843904. Its totient is φ = 267838080.

The previous prime is 957521977. The next prime is 957522047. The reversal of 957521994 is 499125759.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 557139 + ... + 558854.

It is an arithmetic number, because the mean of its divisors is an integer number (70307622).

Almost surely, 2^957521994 is an apocalyptic number.

957521994 is an abundant number, since it is smaller than the sum of its proper divisors (1292321910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

957521994 is a wasteful number, since it uses less digits than its factorization.

957521994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116022.

The product of its digits is 1020600, while the sum is 51.

The square root of 957521994 is about 30943.8522811883. The cubic root of 957521994 is about 985.6353083241.

The spelling of 957521994 in words is "nine hundred fifty-seven million, five hundred twenty-one thousand, nine hundred ninety-four".