12663808 has 44 divisors (see below), whose sum is σ = 25792200. Its totient is φ = 6213632.

The previous prime is 12663803. The next prime is 12663809. The reversal of 12663808 is 80836621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12663803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84918 + ... + 85066.

Almost surely, 2^12663808 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 12663808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12896100).

12663808 is an abundant number, since it is smaller than the sum of its proper divisors (13128392).

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

12663808 is an equidigital number, since it uses as much as digits as its factorization.

12663808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 12663808 is about 3558.6244533527. The cubic root of 12663808 is about 233.0888177787.

The spelling of 12663808 in words is "twelve million, six hundred sixty-three thousand, eight hundred eight".