857275 has 12 divisors (see below), whose sum is σ = 1084752. Its totient is φ = 671840.

The previous prime is 857273. The next prime is 857281. The reversal of 857275 is 572758.

It is not a de Polignac number, because 857275 - 2¹ = 857273 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 857275.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1002 + ... + 1648.

It is an arithmetic number, because the mean of its divisors is an integer number (90396).

2⁸⁵⁷²⁷⁵ is an apocalyptic number.

857275 is a deficient number, since it is larger than the sum of its proper divisors (227477).

857275 is a wasteful number, since it uses less digits than its factorization.

857275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710 (or 705 counting only the distinct ones).

The product of its digits is 19600, while the sum is 34.

The square root of 857275 is about 925.8914623216. The cubic root of 857275 is about 94.9963064123.

The spelling of 857275 in words is "eight hundred fifty-seven thousand, two hundred seventy-five".