857084 has 12 divisors (see below), whose sum is σ = 1506624. Its totient is φ = 426624.

The previous prime is 857083. The next prime is 857099. The reversal of 857084 is 480758.

It is a d-powerful number, because it can be written as 8³ + 5 + 0 + 7⁷ + 8⁵ + 4⁴ .

It is a self number, because there is not a number n which added to its sum of digits gives 857084.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1109 + ... + 1715.

It is an arithmetic number, because the mean of its divisors is an integer number (125552).

2⁸⁵⁷⁰⁸⁴ is an apocalyptic number.

It is an amenable number.

857084 is a deficient number, since it is larger than the sum of its proper divisors (649540).

857084 is a wasteful number, since it uses less digits than its factorization.

857084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964 (or 962 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 857084 is about 925.7883127368. The cubic root of 857084 is about 94.9892508614.

The spelling of 857084 in words is "eight hundred fifty-seven thousand, eighty-four".