857232 has 30 divisors (see below), whose sum is σ = 2399462. Its totient is φ = 285696.

The previous prime is 857221. The next prime is 857249. The reversal of 857232 is 232758.

It can be written as a sum of positive squares in only one way, i.e., 467856 + 389376 = 684^2 + 624^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 857196 and 857205.

It is an unprimeable number.

857232 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2833 + ... + 3120.

2⁸⁵⁷²³² is an apocalyptic number.

It is an amenable number.

857232 is an abundant number, since it is smaller than the sum of its proper divisors (1542230).

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

857232 is a wasteful number, since it uses less digits than its factorization.

857232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5967 (or 5958 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 857232 is about 925.8682411661. The cubic root of 857232 is about 94.9947180812.

It can be divided in two parts, 857 and 232, that added together give a square (1089 = 33²).

The spelling of 857232 in words is "eight hundred fifty-seven thousand, two hundred thirty-two".