856244 has 24 divisors (see below), whose sum is σ = 1608768. Its totient is φ = 397760.

The previous prime is 856241. The next prime is 856249. The reversal of 856244 is 442658.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3659 + ... + 3885.

It is an arithmetic number, because the mean of its divisors is an integer number (67032).

2⁸⁵⁶²⁴⁴ is an apocalyptic number.

It is an amenable number.

856244 is a deficient number, since it is larger than the sum of its proper divisors (752524).

856244 is a wasteful number, since it uses less digits than its factorization.

856244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295 (or 293 counting only the distinct ones).

The product of its digits is 7680, while the sum is 29.

The square root of 856244 is about 925.3345341010. The cubic root of 856244 is about 94.9582087652.

The spelling of 856244 in words is "eight hundred fifty-six thousand, two hundred forty-four".