857004 has 24 divisors (see below), whose sum is σ = 2117808. Its totient is φ = 268800.

The previous prime is 856993. The next prime is 857009. The reversal of 857004 is 400758.

857004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1897 + ... + 2304.

It is an arithmetic number, because the mean of its divisors is an integer number (88242).

2⁸⁵⁷⁰⁰⁴ is an apocalyptic number.

It is an amenable number.

857004 is an abundant number, since it is smaller than the sum of its proper divisors (1260804).

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

857004 is a wasteful number, since it uses less digits than its factorization.

857004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4225 (or 4223 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 857004 is about 925.7451053071. The cubic root of 857004 is about 94.9862953453.

The spelling of 857004 in words is "eight hundred fifty-seven thousand, four".