12988663 has 8 divisors (see below), whose sum is σ = 13806720. Its totient is φ = 12176640.

The previous prime is 12988643. The next prime is 12988681. The reversal of 12988663 is 36688921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12988663 - 2²¹ = 10891511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12988603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3418 + ... + 6136.

It is an arithmetic number, because the mean of its divisors is an integer number (1725840).

Almost surely, 2^12988663 is an apocalyptic number.

12988663 is a deficient number, since it is larger than the sum of its proper divisors (818057).

12988663 is a wasteful number, since it uses less digits than its factorization.

12988663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3017.

The product of its digits is 124416, while the sum is 43.

The square root of 12988663 is about 3603.9787735224. The cubic root of 12988663 is about 235.0650974025.

It can be divided in two parts, 129886 and 63, that multiplied together give a palindrome (8182818).

The spelling of 12988663 in words is "twelve million, nine hundred eighty-eight thousand, six hundred sixty-three".