12791279 has 8 divisors (see below), whose sum is σ = 13071360. Its totient is φ = 12514176.

The previous prime is 12791263. The next prime is 12791281. The reversal of 12791279 is 97219721.

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 12791279 - 2⁴ = 12791263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12791249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9362 + ... + 10640.

It is an arithmetic number, because the mean of its divisors is an integer number (1633920).

Almost surely, 2^12791279 is an apocalyptic number.

12791279 is a deficient number, since it is larger than the sum of its proper divisors (280081).

12791279 is a wasteful number, since it uses less digits than its factorization.

12791279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1489.

The product of its digits is 15876, while the sum is 38.

The square root of 12791279 is about 3576.4897595268. The cubic root of 12791279 is about 233.8682812398.

The spelling of 12791279 in words is "twelve million, seven hundred ninety-one thousand, two hundred seventy-nine".