13999339 has 4 divisors (see below), whose sum is σ = 14059656. Its totient is φ = 13939024.

The previous prime is 13999309. The next prime is 13999351. The reversal of 13999339 is 93399931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93399931 = 31 ⋅3012901.

It is a cyclic number.

It is not a de Polignac number, because 13999339 - 2⁹ = 13998827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13999309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29809 + ... + 30274.

It is an arithmetic number, because the mean of its divisors is an integer number (3514914).

Almost surely, 2^13999339 is an apocalyptic number.

13999339 is a deficient number, since it is larger than the sum of its proper divisors (60317).

13999339 is an equidigital number, since it uses as much as digits as its factorization.

13999339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60316.

The product of its digits is 177147, while the sum is 46.

The square root of 13999339 is about 3741.5690558909. The cubic root of 13999339 is about 241.0104332530.

The spelling of 13999339 in words is "thirteen million, nine hundred ninety-nine thousand, three hundred thirty-nine".