856827 has 6 divisors (see below), whose sum is σ = 1237652. Its totient is φ = 571212.

The previous prime is 856813. The next prime is 856831. The reversal of 856827 is 728658.

It is not a de Polignac number, because 856827 - 2⁴ = 856811 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 856791 and 856800.

It is not an unprimeable number, because it can be changed into a prime (856847) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 47593 + ... + 47610.

2⁸⁵⁶⁸²⁷ is an apocalyptic number.

856827 is a deficient number, since it is larger than the sum of its proper divisors (380825).

856827 is a wasteful number, since it uses less digits than its factorization.

856827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95209 (or 95206 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 856827 is about 925.6495017014. The cubic root of 856827 is about 94.9797556124.

The spelling of 856827 in words is "eight hundred fifty-six thousand, eight hundred twenty-seven".