857052 has 72 divisors (see below), whose sum is σ = 2620800. Its totient is φ = 230688.

The previous prime is 857047. The next prime is 857053. The reversal of 857052 is 250758.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857053) 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 23 ways as a sum of consecutive naturals, for example, 4699 + ... + 4877.

It is an arithmetic number, because the mean of its divisors is an integer number (36400).

2⁸⁵⁷⁰⁵² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 857052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1310400).

857052 is an abundant number, since it is smaller than the sum of its proper divisors (1763748).

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

857052 is a wasteful number, since it uses less digits than its factorization.

857052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 210 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 857052 is about 925.7710300069. The cubic root of 857052 is about 94.9880686770.

The spelling of 857052 in words is "eight hundred fifty-seven thousand, fifty-two".