12808866 has 32 divisors (see below), whose sum is σ = 29472768. Its totient is φ = 3635280.

The previous prime is 12808853. The next prime is 12808891. The reversal of 12808866 is 66880821.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5911 + ... + 7781.

It is an arithmetic number, because the mean of its divisors is an integer number (921024).

Almost surely, 2^12808866 is an apocalyptic number.

12808866 is an abundant number, since it is smaller than the sum of its proper divisors (16663902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12808866 is a wasteful number, since it uses less digits than its factorization.

12808866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2046.

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 12808866 is about 3578.9476106811. The cubic root of 12808866 is about 233.9754156362.

The spelling of 12808866 in words is "twelve million, eight hundred eight thousand, eight hundred sixty-six".