12688874 has 16 divisors (see below), whose sum is σ = 21016800. Its totient is φ = 5697360.

The previous prime is 12688873. The next prime is 12688877. The reversal of 12688874 is 47888621.

It is a super-2 number, since 2×12688874² = 322015046775752, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12688873) 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, 1649 + ... + 5300.

It is an arithmetic number, because the mean of its divisors is an integer number (1313550).

Almost surely, 2^12688874 is an apocalyptic number.

12688874 is a deficient number, since it is larger than the sum of its proper divisors (8327926).

12688874 is a wasteful number, since it uses less digits than its factorization.

12688874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7045.

The product of its digits is 172032, while the sum is 44.

The square root of 12688874 is about 3562.1445787615. The cubic root of 12688874 is about 233.2425038765.

It can be divided in two parts, 12 and 688874, that added together give a palindrome (688886).

The spelling of 12688874 in words is "twelve million, six hundred eighty-eight thousand, eight hundred seventy-four".