12688508 has 12 divisors (see below), whose sum is σ = 25377072. Its totient is φ = 5437920.

The previous prime is 12688471. The next prime is 12688513. The reversal of 12688508 is 80588621.

12688508 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

12688508 is an admirable number.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226553 + ... + 226608.

It is an arithmetic number, because the mean of its divisors is an integer number (2114756).

Almost surely, 2^12688508 is an apocalyptic number.

It is an amenable number.

12688508 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12688508 is a wasteful number, since it uses less digits than its factorization.

12688508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453172 (or 453170 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 38.

The square root of 12688508 is about 3562.0932048446. The cubic root of 12688508 is about 233.2402612930.

The spelling of 12688508 in words is "twelve million, six hundred eighty-eight thousand, five hundred eight".