12944397 has 8 divisors (see below), whose sum is σ = 17680320. Its totient is φ = 8419040.

The previous prime is 12944389. The next prime is 12944443. The reversal of 12944397 is 79344921.

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 12944397 - 2³ = 12944389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12944297) 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, 52497 + ... + 52742.

It is an arithmetic number, because the mean of its divisors is an integer number (2210040).

Almost surely, 2^12944397 is an apocalyptic number.

It is an amenable number.

12944397 is a deficient number, since it is larger than the sum of its proper divisors (4735923).

12944397 is a wasteful number, since it uses less digits than its factorization.

12944397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105283.

The product of its digits is 54432, while the sum is 39.

The square root of 12944397 is about 3597.8322640168. The cubic root of 12944397 is about 234.7977556772.

The spelling of 12944397 in words is "twelve million, nine hundred forty-four thousand, three hundred ninety-seven".