12688608 has 24 divisors (see below), whose sum is σ = 33307848. Its totient is φ = 4229504.

The previous prime is 12688607. The next prime is 12688609. The reversal of 12688608 is 80688621.

It is an interprime number because it is at equal distance from previous prime (12688607) and next prime (12688609).

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×12688608² = 322001545955328, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12688607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65991 + ... + 66182.

It is an arithmetic number, because the mean of its divisors is an integer number (1387827).

Almost surely, 2^12688608 is an apocalyptic number.

It is an amenable number.

12688608 is an abundant number, since it is smaller than the sum of its proper divisors (20619240).

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

12688608 is a wasteful number, since it uses less digits than its factorization.

12688608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132186 (or 132178 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 12688608 is about 3562.1072415075. The cubic root of 12688608 is about 233.2408740250.

The spelling of 12688608 in words is "twelve million, six hundred eighty-eight thousand, six hundred eight".