12959939 has 2 divisors, whose sum is σ = 12959940. Its totient is φ = 12959938.

The previous prime is 12959927. The next prime is 12959941. The reversal of 12959939 is 93995921.

It is a strong prime.

It is an emirp because it is prime and its reverse (93995921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12959939 - 2²⁰ = 11911363 is a prime.

It is a Sophie Germain prime.

Together with 12959941, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12959893 and 12959902.

It is not a weakly prime, because it can be changed into another prime (12959959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6479969 + 6479970.

It is an arithmetic number, because the mean of its divisors is an integer number (6479970).

Almost surely, 2^12959939 is an apocalyptic number.

12959939 is a deficient number, since it is larger than the sum of its proper divisors (1).

12959939 is an equidigital number, since it uses as much as digits as its factorization.

12959939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 196830, while the sum is 47.

The square root of 12959939 is about 3599.9915277678. The cubic root of 12959939 is about 234.8916899403.

The spelling of 12959939 in words is "twelve million, nine hundred fifty-nine thousand, nine hundred thirty-nine".