12739393 has 2 divisors, whose sum is σ = 12739394. Its totient is φ = 12739392.

The previous prime is 12739387. The next prime is 12739403. The reversal of 12739393 is 39393721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11950849 + 788544 = 3457^2 + 888^2 .

It is a cyclic number.

It is not a de Polignac number, because 12739393 - 2⁹ = 12738881 is a prime.

It is not a weakly prime, because it can be changed into another prime (12739343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6369696 + 6369697.

It is an arithmetic number, because the mean of its divisors is an integer number (6369697).

Almost surely, 2^12739393 is an apocalyptic number.

It is an amenable number.

12739393 is a deficient number, since it is larger than the sum of its proper divisors (1).

12739393 is an equidigital number, since it uses as much as digits as its factorization.

12739393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30618, while the sum is 37.

The square root of 12739393 is about 3569.2286281492. The cubic root of 12739393 is about 233.5516349271.

The spelling of 12739393 in words is "twelve million, seven hundred thirty-nine thousand, three hundred ninety-three".