857028 has 12 divisors (see below), whose sum is σ = 1999760. Its totient is φ = 285672.

The previous prime is 857027. The next prime is 857029. The reversal of 857028 is 820758.

It is an interprime number because it is at equal distance from previous prime (857027) and next prime (857029).

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 856986 and 857004.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 857028.

It is not an unprimeable number, because it can be changed into a prime (857027) 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, 35698 + ... + 35721.

2⁸⁵⁷⁰²⁸ is an apocalyptic number.

It is an amenable number.

857028 is an abundant number, since it is smaller than the sum of its proper divisors (1142732).

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

857028 is a wasteful number, since it uses less digits than its factorization.

857028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71426 (or 71424 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 857028 is about 925.7580677477. The cubic root of 857028 is about 94.9871820194.

The spelling of 857028 in words is "eight hundred fifty-seven thousand, twenty-eight".