12636608 has 28 divisors (see below), whose sum is σ = 25615392. Its totient is φ = 6182400.

The previous prime is 12636607. The next prime is 12636641. The reversal of 12636608 is 80663621.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12636607) 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, 908 + ... + 5108.

Almost surely, 2^12636608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12636608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12807696).

12636608 is an abundant number, since it is smaller than the sum of its proper divisors (12978784).

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

12636608 is an equidigital number, since it uses as much as digits as its factorization.

12636608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4260 (or 4250 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 12636608 is about 3554.8006976482. The cubic root of 12636608 is about 232.9218179735.

The spelling of 12636608 in words is "twelve million, six hundred thirty-six thousand, six hundred eight".