12503808 has 126 divisors (see below), whose sum is σ = 37979564. Its totient is φ = 4105728.

The previous prime is 12503797. The next prime is 12503831. The reversal of 12503808 is 80830521.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 13 ways as a sum of consecutive naturals, for example, 186591 + ... + 186657.

Almost surely, 2^12503808 is an apocalyptic number.

12503808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12503808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18989782).

12503808 is an abundant number, since it is smaller than the sum of its proper divisors (25475756).

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

12503808 is an frugal number, since it uses more digits than its factorization.

12503808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101 (or 72 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 12503808 is about 3536.0723974489. The cubic root of 12503808 is about 232.1030061816.

The spelling of 12503808 in words is "twelve million, five hundred three thousand, eight hundred eight".