856934 has 16 divisors (see below), whose sum is σ = 1445472. Its totient is φ = 378048.

The previous prime is 856927. The next prime is 856939. The reversal of 856934 is 439658.

856934 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 856894 and 856903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856939) 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, 119 + ... + 1314.

It is an arithmetic number, because the mean of its divisors is an integer number (90342).

2⁸⁵⁶⁹³⁴ is an apocalyptic number.

856934 is a deficient number, since it is larger than the sum of its proper divisors (588538).

856934 is a wasteful number, since it uses less digits than its factorization.

856934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471.

The product of its digits is 25920, while the sum is 35.

The square root of 856934 is about 925.7072971518. The cubic root of 856934 is about 94.9837091179.

The spelling of 856934 in words is "eight hundred fifty-six thousand, nine hundred thirty-four".