855906 has 16 divisors (see below), whose sum is σ = 1771200. Its totient is φ = 275408.

The previous prime is 855901. The next prime is 855919. The reversal of 855906 is 609558.

855906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (855901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2286 + ... + 2633.

It is an arithmetic number, because the mean of its divisors is an integer number (110700).

2⁸⁵⁵⁹⁰⁶ is an apocalyptic number.

855906 is an abundant number, since it is smaller than the sum of its proper divisors (915294).

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

855906 is a wasteful number, since it uses less digits than its factorization.

855906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4953.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 855906 is about 925.1518794230. The cubic root of 855906 is about 94.9457122889.

The spelling of 855906 in words is "eight hundred fifty-five thousand, nine hundred six".