856053 has 12 divisors (see below), whose sum is σ = 1349088. Its totient is φ = 518760.

The previous prime is 856043. The next prime is 856057. The reversal of 856053 is 350658.

It is not a de Polignac number, because 856053 - 2⁵ = 856021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4225 + ... + 4422.

It is an arithmetic number, because the mean of its divisors is an integer number (112424).

2⁸⁵⁶⁰⁵³ is an apocalyptic number.

It is an amenable number.

856053 is a deficient number, since it is larger than the sum of its proper divisors (493035).

856053 is a wasteful number, since it uses less digits than its factorization.

856053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8664 (or 8661 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 856053 is about 925.2313224270. The cubic root of 856053 is about 94.9511475511.

The spelling of 856053 in words is "eight hundred fifty-six thousand, fifty-three".