855668 has 12 divisors (see below), whose sum is σ = 1633632. Its totient is φ = 388920.

The previous prime is 855667. The next prime is 855671. The reversal of 855668 is 866558.

855668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855667) 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, 9680 + ... + 9767.

It is an arithmetic number, because the mean of its divisors is an integer number (136136).

2⁸⁵⁵⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

855668 is a deficient number, since it is larger than the sum of its proper divisors (777964).

855668 is a wasteful number, since it uses less digits than its factorization.

855668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19462 (or 19460 counting only the distinct ones).

The product of its digits is 57600, while the sum is 38.

The square root of 855668 is about 925.0232429512. The cubic root of 855668 is about 94.9369110208.

The spelling of 855668 in words is "eight hundred fifty-five thousand, six hundred sixty-eight".