13004939 has 2 divisors, whose sum is σ = 13004940. Its totient is φ = 13004938.

The previous prime is 13004933. The next prime is 13004941. The reversal of 13004939 is 93940031.

13004939 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (93940031) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13004939 is a prime.

Together with 13004941, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13004933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6502469 + 6502470.

It is an arithmetic number, because the mean of its divisors is an integer number (6502470).

Almost surely, 2^13004939 is an apocalyptic number.

13004939 is a deficient number, since it is larger than the sum of its proper divisors (1).

13004939 is an equidigital number, since it uses as much as digits as its factorization.

13004939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 13004939 is about 3606.2361264898. The cubic root of 13004939 is about 235.1632425455.

The spelling of 13004939 in words is "thirteen million, four thousand, nine hundred thirty-nine".