856802 has 4 divisors (see below), whose sum is σ = 1285206. Its totient is φ = 428400.

The previous prime is 856799. The next prime is 856811. The reversal of 856802 is 208658.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 703921 + 152881 = 839^2 + 391^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214199 + ... + 214202.

2⁸⁵⁶⁸⁰² is an apocalyptic number.

856802 is a deficient number, since it is larger than the sum of its proper divisors (428404).

856802 is a wasteful number, since it uses less digits than its factorization.

856802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428403.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 856802 is about 925.6359975714. The cubic root of 856802 is about 94.9788318487.

The spelling of 856802 in words is "eight hundred fifty-six thousand, eight hundred two".