957804991 has 16 divisors (see below), whose sum is σ = 1184480640. Its totient is φ = 761447520.

The previous prime is 957804989. The next prime is 957805001. The reversal of 957804991 is 199408759.

It is a cyclic number.

It is not a de Polignac number, because 957804991 - 2¹ = 957804989 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 (957801991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173545 + ... + 178978.

It is an arithmetic number, because the mean of its divisors is an integer number (74030040).

Almost surely, 2^957804991 is an apocalyptic number.

957804991 is a deficient number, since it is larger than the sum of its proper divisors (226675649).

957804991 is a wasteful number, since it uses less digits than its factorization.

957804991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352566.

The product of its (nonzero) digits is 816480, while the sum is 52.

The square root of 957804991 is about 30948.4246933507. The cubic root of 957804991 is about 985.7324007363.

The spelling of 957804991 in words is "nine hundred fifty-seven million, eight hundred four thousand, nine hundred ninety-one".