12744817 has 2 divisors, whose sum is σ = 12744818. Its totient is φ = 12744816.

The previous prime is 12744799. The next prime is 12744821. The reversal of 12744817 is 71844721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12737761 + 7056 = 3569^2 + 84^2 .

It is a cyclic number.

It is not a de Polignac number, because 12744817 - 2¹⁹ = 12220529 is a prime.

It is not a weakly prime, because it can be changed into another prime (12744847) 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 as a sum of consecutive naturals, namely, 6372408 + 6372409.

It is an arithmetic number, because the mean of its divisors is an integer number (6372409).

Almost surely, 2^12744817 is an apocalyptic number.

It is an amenable number.

12744817 is a deficient number, since it is larger than the sum of its proper divisors (1).

12744817 is an equidigital number, since it uses as much as digits as its factorization.

12744817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12544, while the sum is 34.

The square root of 12744817 is about 3569.9883753312. The cubic root of 12744817 is about 233.5847763367.

It can be divided in two parts, 127 and 44817, that added together give a palindrome (44944).

The spelling of 12744817 in words is "twelve million, seven hundred forty-four thousand, eight hundred seventeen".