12808816 has 20 divisors (see below), whose sum is σ = 25346592. Its totient is φ = 6267776.

The previous prime is 12808801. The next prime is 12808819. The reversal of 12808816 is 61880821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12808819) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7765 + ... + 9268.

Almost surely, 2^12808816 is an apocalyptic number.

12808816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12808816 is a deficient number, since it is larger than the sum of its proper divisors (12537776).

12808816 is a wasteful number, since it uses less digits than its factorization.

12808816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17088 (or 17082 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 34.

The square root of 12808816 is about 3578.9406253806. The cubic root of 12808816 is about 233.9751111912.

The spelling of 12808816 in words is "twelve million, eight hundred eight thousand, eight hundred sixteen".