12890808 has 48 divisors (see below), whose sum is σ = 39901680. Its totient is φ = 3682944.

The previous prime is 12890791. The next prime is 12890809. The reversal of 12890808 is 80809821.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12890809) 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 11 ways as a sum of consecutive naturals, for example, 12285 + ... + 13292.

It is an arithmetic number, because the mean of its divisors is an integer number (831285).

Almost surely, 2^12890808 is an apocalyptic number.

12890808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12890808 is an abundant number, since it is smaller than the sum of its proper divisors (27010872).

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

12890808 is a wasteful number, since it uses less digits than its factorization.

12890808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25596 (or 25589 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 12890808 is about 3590.3771389647. The cubic root of 12890808 is about 234.4732914664.

The spelling of 12890808 in words is "twelve million, eight hundred ninety thousand, eight hundred eight".