12744979 has 8 divisors (see below), whose sum is σ = 13804560. Its totient is φ = 11696736.

The previous prime is 12744961. The next prime is 12745009. The reversal of 12744979 is 97944721.

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 12744979 - 2⁵ = 12744947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12744929) by changing a digit.

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, 412 + ... + 5065.

It is an arithmetic number, because the mean of its divisors is an integer number (1725570).

Almost surely, 2^12744979 is an apocalyptic number.

12744979 is a deficient number, since it is larger than the sum of its proper divisors (1059581).

12744979 is a wasteful number, since it uses less digits than its factorization.

12744979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5669.

The product of its digits is 127008, while the sum is 43.

The square root of 12744979 is about 3570.0110644086. The cubic root of 12744979 is about 233.5857660351.

The spelling of 12744979 in words is "twelve million, seven hundred forty-four thousand, nine hundred seventy-nine".