12808838 has 16 divisors (see below), whose sum is σ = 22913280. Its totient is φ = 5250696.

The previous prime is 12808819. The next prime is 12808843. The reversal of 12808838 is 83880821.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 19568 + ... + 20211.

It is an arithmetic number, because the mean of its divisors is an integer number (1432080).

Almost surely, 2^12808838 is an apocalyptic number.

12808838 is a deficient number, since it is larger than the sum of its proper divisors (10104442).

12808838 is a wasteful number, since it uses less digits than its factorization.

12808838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39811.

The product of its (nonzero) digits is 24576, while the sum is 38.

The square root of 12808838 is about 3578.9436989145. The cubic root of 12808838 is about 233.9752451471.

The spelling of 12808838 in words is "twelve million, eight hundred eight thousand, eight hundred thirty-eight".