856964 has 12 divisors (see below), whose sum is σ = 1548288. Its totient is φ = 414600.

The previous prime is 856949. The next prime is 856969. The reversal of 856964 is 469658.

It is not an unprimeable number, because it can be changed into a prime (856969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3332 + ... + 3579.

It is an arithmetic number, because the mean of its divisors is an integer number (129024).

2⁸⁵⁶⁹⁶⁴ is an apocalyptic number.

It is an amenable number.

856964 is a deficient number, since it is larger than the sum of its proper divisors (691324).

856964 is a wasteful number, since it uses less digits than its factorization.

856964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6946 (or 6944 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The square root of 856964 is about 925.7235008360. The cubic root of 856964 is about 94.9848175183.

The spelling of 856964 in words is "eight hundred fifty-six thousand, nine hundred sixty-four".