6686806 has 16 divisors (see below), whose sum is σ = 11579040. Its totient is φ = 2836800.

The previous prime is 6686789. The next prime is 6686843. The reversal of 6686806 is 6086866.

It is a congruent 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, 951 + ... + 3778.

It is an arithmetic number, because the mean of its divisors is an integer number (723690).

Almost surely, 2^6686806 is an apocalyptic number.

6686806 is a deficient number, since it is larger than the sum of its proper divisors (4892234).

6686806 is a wasteful number, since it uses less digits than its factorization.

6686806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4839.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 6686806 is about 2585.8859216911. The cubic root of 6686806 is about 188.3965336398.

The spelling of 6686806 in words is "six million, six hundred eighty-six thousand, eight hundred six".