855404 has 12 divisors (see below), whose sum is σ = 1633128. Its totient is φ = 388800.

The previous prime is 855401. The next prime is 855419. The reversal of 855404 is 404558.

855404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (855401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9677 + ... + 9764.

It is an arithmetic number, because the mean of its divisors is an integer number (136094).

2⁸⁵⁵⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

855404 is a deficient number, since it is larger than the sum of its proper divisors (777724).

855404 is a wasteful number, since it uses less digits than its factorization.

855404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19456 (or 19454 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 855404 is about 924.8805328257. The cubic root of 855404 is about 94.9271463603.

The spelling of 855404 in words is "eight hundred fifty-five thousand, four hundred four".