12409339 has 2 divisors, whose sum is σ = 12409340. Its totient is φ = 12409338.

The previous prime is 12409333. The next prime is 12409349. The reversal of 12409339 is 93390421.

It is a weak prime.

It is an emirp because it is prime and its reverse (93390421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12409339 - 2¹⁵ = 12376571 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12409339.

It is not a weakly prime, because it can be changed into another prime (12409333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6204669 + 6204670.

It is an arithmetic number, because the mean of its divisors is an integer number (6204670).

Almost surely, 2^12409339 is an apocalyptic number.

12409339 is a deficient number, since it is larger than the sum of its proper divisors (1).

12409339 is an equidigital number, since it uses as much as digits as its factorization.

12409339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 12409339 is about 3522.6891716415. The cubic root of 12409339 is about 231.5169982558.

The spelling of 12409339 in words is "twelve million, four hundred nine thousand, three hundred thirty-nine".