6856886 has 8 divisors (see below), whose sum is σ = 10297584. Its totient is φ = 3424360.

The previous prime is 6856873. The next prime is 6856897. The reversal of 6856886 is 6886586.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 6856886.

It is a congruent number.

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, 911 + ... + 3813.

It is an arithmetic number, because the mean of its divisors is an integer number (1287198).

Almost surely, 2^6856886 is an apocalyptic number.

6856886 is a deficient number, since it is larger than the sum of its proper divisors (3440698).

6856886 is a wasteful number, since it uses less digits than its factorization.

6856886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4086.

The product of its digits is 552960, while the sum is 47.

The square root of 6856886 is about 2618.5656379018. The cubic root of 6856886 is about 189.9804781420.

The spelling of 6856886 in words is "six million, eight hundred fifty-six thousand, eight hundred eighty-six".