6808666 has 8 divisors (see below), whose sum is σ = 10489140. Its totient is φ = 3312288.

The previous prime is 6808657. The next prime is 6808699. The reversal of 6808666 is 6668086.

It can be written as a sum of positive squares in 2 ways, for example, as 6579225 + 229441 = 2565^2 + 479^2 .

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

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 45931 + ... + 46078.

Almost surely, 2^6808666 is an apocalyptic number.

6808666 is a deficient number, since it is larger than the sum of its proper divisors (3680474).

6808666 is a wasteful number, since it uses less digits than its factorization.

6808666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92048.

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

The square root of 6808666 is about 2609.3420626664. The cubic root of 6808666 is about 189.5340939253.

The spelling of 6808666 in words is "six million, eight hundred eight thousand, six hundred sixty-six".