855008685 has 24 divisors (see below), whose sum is σ = 1483522560. Its totient is φ = 455540832.

The previous prime is 855008611. The next prime is 855008701. The reversal of 855008685 is 586800558.

855008685 is a `hidden beast` number, since 85 + 500 + 8 + 68 + 5 = 666.

855008685 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 855008685 - 2¹⁰ = 855007661 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 855008685.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37612 + ... + 55898.

It is an arithmetic number, because the mean of its divisors is an integer number (61813440).

Almost surely, 2^855008685 is an apocalyptic number.

It is an amenable number.

855008685 is a deficient number, since it is larger than the sum of its proper divisors (628513875).

855008685 is a wasteful number, since it uses less digits than its factorization.

855008685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19337 (or 19334 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 45.

The square root of 855008685 is about 29240.5315444162. The cubic root of 855008685 is about 949.1252094858.

The spelling of 855008685 in words is "eight hundred fifty-five million, eight thousand, six hundred eighty-five".