857057632 has 12 divisors (see below), whose sum is σ = 1687332276. Its totient is φ = 428528800.

The previous prime is 857057623. The next prime is 857057633. The reversal of 857057632 is 236750758.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857057633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13391494 + ... + 13391557.

It is an arithmetic number, because the mean of its divisors is an integer number (140611023).

Almost surely, 2^857057632 is an apocalyptic number.

It is an amenable number.

857057632 is a deficient number, since it is larger than the sum of its proper divisors (830274644).

857057632 is a wasteful number, since it uses less digits than its factorization.

857057632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26783061 (or 26783053 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 43.

The square root of 857057632 is about 29275.5466558696. The cubic root of 857057632 is about 949.8827674359.

The spelling of 857057632 in words is "eight hundred fifty-seven million, fifty-seven thousand, six hundred thirty-two".