6806686 has 8 divisors (see below), whose sum is σ = 10266984. Its totient is φ = 3384360.

The previous prime is 6806671. The next prime is 6806687. The reversal of 6806686 is 6866086.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6806687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9040 + ... + 9763.

It is an arithmetic number, because the mean of its divisors is an integer number (1283373).

Almost surely, 2^6806686 is an apocalyptic number.

6806686 is a deficient number, since it is larger than the sum of its proper divisors (3460298).

6806686 is a wasteful number, since it uses less digits than its factorization.

6806686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18986.

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

The square root of 6806686 is about 2608.9626290923. The cubic root of 6806686 is about 189.5157196020.

The spelling of 6806686 in words is "six million, eight hundred six thousand, six hundred eighty-six".