6856885 has 16 divisors (see below), whose sum is σ = 9446400. Its totient is φ = 4680576.

The previous prime is 6856873. The next prime is 6856897. The reversal of 6856885 is 5886586.

6856885 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (6856873) and next prime (6856897).

It is a cyclic number.

It is not a de Polignac number, because 6856885 - 2⁷ = 6856757 is a prime.

Its product of digits (460800) is a multiple of the sum of its prime divisors (900).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14076 + ... + 14554.

It is an arithmetic number, because the mean of its divisors is an integer number (590400).

Almost surely, 2^6856885 is an apocalyptic number.

It is an amenable number.

6856885 is a deficient number, since it is larger than the sum of its proper divisors (2589515).

6856885 is a wasteful number, since it uses less digits than its factorization.

6856885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900.

The product of its digits is 460800, while the sum is 46.

The square root of 6856885 is about 2618.5654469576. The cubic root of 6856885 is about 189.9804689065.

Subtracting from 6856885 its reverse (5886586), we obtain a cube (970299 = 99³).

It can be divided in two parts, 68 and 56885, that added together give a triangular number (56953 = T₃₃₇).

The spelling of 6856885 in words is "six million, eight hundred fifty-six thousand, eight hundred eighty-five".