856888 has 16 divisors (see below), whose sum is σ = 1676880. Its totient is φ = 409728.

The previous prime is 856853. The next prime is 856897. The reversal of 856888 is 888658.

856888 is a modest number, since divided by 888 gives 856 as remainder.

It is a congruent number.

It is an unprimeable number.

856888 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2145 + ... + 2512.

It is an arithmetic number, because the mean of its divisors is an integer number (104805).

2⁸⁵⁶⁸⁸⁸ is an apocalyptic number.

It is an amenable number.

856888 is a deficient number, since it is larger than the sum of its proper divisors (819992).

856888 is a wasteful number, since it uses less digits than its factorization.

856888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4686 (or 4682 counting only the distinct ones).

The product of its digits is 122880, while the sum is 43.

The square root of 856888 is about 925.6824509517. The cubic root of 856888 is about 94.9820095203.

The spelling of 856888 in words is "eight hundred fifty-six thousand, eight hundred eighty-eight".