12663868 has 24 divisors (see below), whose sum is σ = 25869312. Its totient is φ = 5311344.

The previous prime is 12663829. The next prime is 12663877. The reversal of 12663868 is 86836621.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 12663868.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 3496 + ... + 6127.

It is an arithmetic number, because the mean of its divisors is an integer number (1077888).

Almost surely, 2^12663868 is an apocalyptic number.

It is an amenable number.

12663868 is an abundant number, since it is smaller than the sum of its proper divisors (13205444).

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

12663868 is a wasteful number, since it uses less digits than its factorization.

12663868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9681 (or 9679 counting only the distinct ones).

The product of its digits is 82944, while the sum is 40.

The square root of 12663868 is about 3558.6328835664. The cubic root of 12663868 is about 233.0891858962.

It can be divided in two parts, 12663 and 868, that added together give a palindrome (13531).

The spelling of 12663868 in words is "twelve million, six hundred sixty-three thousand, eight hundred sixty-eight".