855912 has 32 divisors (see below), whose sum is σ = 2253600. Its totient is φ = 270144.

The previous prime is 855901. The next prime is 855919. The reversal of 855912 is 219558.

855912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 855912.

It is not an unprimeable number, because it can be changed into a prime (855919) by changing a digit.

855912 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 483 + ... + 1394.

It is an arithmetic number, because the mean of its divisors is an integer number (70425).

2⁸⁵⁵⁹¹² is an apocalyptic number.

It is an amenable number.

855912 is an abundant number, since it is smaller than the sum of its proper divisors (1397688).

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

855912 is a wasteful number, since it uses less digits than its factorization.

855912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1905 (or 1901 counting only the distinct ones).

The product of its digits is 3600, while the sum is 30.

The square root of 855912 is about 925.1551221282. The cubic root of 855912 is about 94.9459341485.

The spelling of 855912 in words is "eight hundred fifty-five thousand, nine hundred twelve".