6679866 has 16 divisors (see below), whose sum is σ = 13579488. Its totient is φ = 2190000.

The previous prime is 6679853. The next prime is 6679901. The reversal of 6679866 is 6689766.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8760 + ... + 9491.

It is an arithmetic number, because the mean of its divisors is an integer number (848718).

Almost surely, 2^6679866 is an apocalyptic number.

6679866 is an abundant number, since it is smaller than the sum of its proper divisors (6899622).

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

6679866 is a wasteful number, since it uses less digits than its factorization.

6679866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18317.

The product of its digits is 653184, while the sum is 48.

The square root of 6679866 is about 2584.5436734557. The cubic root of 6679866 is about 188.3313343737.

The spelling of 6679866 in words is "six million, six hundred seventy-nine thousand, eight hundred sixty-six".