857680941 has 16 divisors (see below), whose sum is σ = 1235110464. Its totient is φ = 526274304.

The previous prime is 857680933. The next prime is 857680951. The reversal of 857680941 is 149086758.

It is not a de Polignac number, because 857680941 - 2³ = 857680933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857680951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18156 + ... + 45221.

It is an arithmetic number, because the mean of its divisors is an integer number (77194404).

Almost surely, 2^857680941 is an apocalyptic number.

It is an amenable number.

857680941 is a deficient number, since it is larger than the sum of its proper divisors (377429523).

857680941 is a wasteful number, since it uses less digits than its factorization.

857680941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63740.

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 857680941 is about 29286.1902780133. The cubic root of 857680941 is about 950.1129841614.

The spelling of 857680941 in words is "eight hundred fifty-seven million, six hundred eighty thousand, nine hundred forty-one".