12809902 has 16 divisors (see below), whose sum is σ = 22095360. Its totient is φ = 5456088.

The previous prime is 12809879. The next prime is 12809921. The reversal of 12809902 is 20990821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 402 + ... + 5077.

It is an arithmetic number, because the mean of its divisors is an integer number (1380960).

Almost surely, 2^12809902 is an apocalyptic number.

12809902 is a deficient number, since it is larger than the sum of its proper divisors (9285458).

12809902 is a wasteful number, since it uses less digits than its factorization.

12809902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5655.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 12809902 is about 3579.0923430389. The cubic root of 12809902 is about 233.9817235586.

The spelling of 12809902 in words is "twelve million, eight hundred nine thousand, nine hundred two".