12943678 has 16 divisors (see below), whose sum is σ = 21864960. Its totient is φ = 5693400.

The previous prime is 12943639. The next prime is 12943691. The reversal of 12943678 is 87634921.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 12943678.

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, 8808 + ... + 10171.

It is an arithmetic number, because the mean of its divisors is an integer number (1366560).

Almost surely, 2^12943678 is an apocalyptic number.

12943678 is a deficient number, since it is larger than the sum of its proper divisors (8921282).

12943678 is a wasteful number, since it uses less digits than its factorization.

12943678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19023.

The product of its digits is 72576, while the sum is 40.

The square root of 12943678 is about 3597.7323413506. The cubic root of 12943678 is about 234.7934082953.

The spelling of 12943678 in words is "twelve million, nine hundred forty-three thousand, six hundred seventy-eight".