6806687 has 2 divisors, whose sum is σ = 6806688. Its totient is φ = 6806686.

The previous prime is 6806671. The next prime is 6806711. The reversal of 6806687 is 7866086.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6806687 - 2⁴ = 6806671 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6809687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3403343 + 3403344.

It is an arithmetic number, because the mean of its divisors is an integer number (3403344).

Almost surely, 2^6806687 is an apocalyptic number.

6806687 is a deficient number, since it is larger than the sum of its proper divisors (1).

6806687 is an equidigital number, since it uses as much as digits as its factorization.

6806687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 6806687 is about 2608.9628207393. The cubic root of 6806687 is about 189.5157288829.

The spelling of 6806687 in words is "six million, eight hundred six thousand, six hundred eighty-seven".