12943393 has 2 divisors, whose sum is σ = 12943394. Its totient is φ = 12943392.

The previous prime is 12943369. The next prime is 12943397. The reversal of 12943393 is 39334921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7144929 + 5798464 = 2673^2 + 2408^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12943393 is a prime.

It is not a weakly prime, because it can be changed into another prime (12943397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6471696 + 6471697.

It is an arithmetic number, because the mean of its divisors is an integer number (6471697).

Almost surely, 2^12943393 is an apocalyptic number.

It is an amenable number.

12943393 is a deficient number, since it is larger than the sum of its proper divisors (1).

12943393 is an equidigital number, since it uses as much as digits as its factorization.

12943393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17496, while the sum is 34.

The square root of 12943393 is about 3597.6927328498. The cubic root of 12943393 is about 234.7916850187.

The spelling of 12943393 in words is "twelve million, nine hundred forty-three thousand, three hundred ninety-three".