6806690 has 16 divisors (see below), whose sum is σ = 13366080. Its totient is φ = 2475120.

The previous prime is 6806687. The next prime is 6806711. The reversal of 6806690 is 966086.

It is a super-2 number, since 2×6806690² = 92662057512200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6806690.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30830 + ... + 31049.

It is an arithmetic number, because the mean of its divisors is an integer number (835380).

Almost surely, 2^6806690 is an apocalyptic number.

6806690 is a deficient number, since it is larger than the sum of its proper divisors (6559390).

6806690 is a wasteful number, since it uses less digits than its factorization.

6806690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61897.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 6806690 is about 2608.9633956804. The cubic root of 6806690 is about 189.5157567255.

The spelling of 6806690 in words is "six million, eight hundred six thousand, six hundred ninety".