856104 has 16 divisors (see below), whose sum is σ = 2140320. Its totient is φ = 285360.

The previous prime is 856099. The next prime is 856111. The reversal of 856104 is 401658.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 35671 = 856104 / (8 + 5 + 6 + 1 + 0 + 4).

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, 17812 + ... + 17859.

It is an arithmetic number, because the mean of its divisors is an integer number (133770).

2⁸⁵⁶¹⁰⁴ is an apocalyptic number.

It is an amenable number.

856104 is an abundant number, since it is smaller than the sum of its proper divisors (1284216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

856104 is a wasteful number, since it uses less digits than its factorization.

856104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35680 (or 35676 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 856104 is about 925.2588826918. The cubic root of 856104 is about 94.9530331090.

The spelling of 856104 in words is "eight hundred fifty-six thousand, one hundred four".