13439311 has 2 divisors, whose sum is σ = 13439312. Its totient is φ = 13439310.

The previous prime is 13439297. The next prime is 13439317. The reversal of 13439311 is 11393431.

13439311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13439311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13439317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6719655 + 6719656.

It is an arithmetic number, because the mean of its divisors is an integer number (6719656).

Almost surely, 2^13439311 is an apocalyptic number.

13439311 is a deficient number, since it is larger than the sum of its proper divisors (1).

13439311 is an equidigital number, since it uses as much as digits as its factorization.

13439311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 972, while the sum is 25.

The square root of 13439311 is about 3665.9665846813. The cubic root of 13439311 is about 237.7528151817.

The spelling of 13439311 in words is "thirteen million, four hundred thirty-nine thousand, three hundred eleven".