6856880 has 20 divisors (see below), whose sum is σ = 15942432. Its totient is φ = 2742720.

The previous prime is 6856873. The next prime is 6856897. The reversal of 6856880 is 886586.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42776 + ... + 42935.

Almost surely, 2^6856880 is an apocalyptic number.

It is an amenable number.

6856880 is an abundant number, since it is smaller than the sum of its proper divisors (9085552).

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

6856880 is a wasteful number, since it uses less digits than its factorization.

6856880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85724 (or 85718 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 6856880 is about 2618.5644922362. The cubic root of 6856880 is about 189.9804227289.

The spelling of 6856880 in words is "six million, eight hundred fifty-six thousand, eight hundred eighty".