12306839 has 2 divisors, whose sum is σ = 12306840. Its totient is φ = 12306838.

The previous prime is 12306803. The next prime is 12306859. The reversal of 12306839 is 93860321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12306839 - 2⁸ = 12306583 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12306859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6153419 + 6153420.

It is an arithmetic number, because the mean of its divisors is an integer number (6153420).

Almost surely, 2^12306839 is an apocalyptic number.

12306839 is a deficient number, since it is larger than the sum of its proper divisors (1).

12306839 is an equidigital number, since it uses as much as digits as its factorization.

12306839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 12306839 is about 3508.1104600625. The cubic root of 12306839 is about 230.8777987241.

The spelling of 12306839 in words is "twelve million, three hundred six thousand, eight hundred thirty-nine".