855004 has 6 divisors (see below), whose sum is σ = 1496264. Its totient is φ = 427500.

The previous prime is 854999. The next prime is 855031. The reversal of 855004 is 400558.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106872 + ... + 106879.

2⁸⁵⁵⁰⁰⁴ is an apocalyptic number.

It is an amenable number.

855004 is a deficient number, since it is larger than the sum of its proper divisors (641260).

855004 is a wasteful number, since it uses less digits than its factorization.

855004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213755 (or 213753 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 855004 is about 924.6642633951. The cubic root of 855004 is about 94.9123475913.

The spelling of 855004 in words is "eight hundred fifty-five thousand, four".