856916 has 12 divisors (see below), whose sum is σ = 1525440. Its totient is φ = 421080.

The previous prime is 856909. The next prime is 856927. The reversal of 856916 is 619658.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1580 + ... + 2051.

It is an arithmetic number, because the mean of its divisors is an integer number (127120).

2⁸⁵⁶⁹¹⁶ is an apocalyptic number.

It is an amenable number.

856916 is a deficient number, since it is larger than the sum of its proper divisors (668524).

856916 is a wasteful number, since it uses less digits than its factorization.

856916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3694 (or 3692 counting only the distinct ones).

The product of its digits is 12960, while the sum is 35.

The square root of 856916 is about 925.6975748051. The cubic root of 856916 is about 94.9830440652.

The spelling of 856916 in words is "eight hundred fifty-six thousand, nine hundred sixteen".