13329839 has 4 divisors (see below), whose sum is σ = 13339080. Its totient is φ = 13320600.

The previous prime is 13329829. The next prime is 13329847. The reversal of 13329839 is 93892331.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13329839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13329829) 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, 1937 + ... + 5514.

It is an arithmetic number, because the mean of its divisors is an integer number (3334770).

Almost surely, 2^13329839 is an apocalyptic number.

13329839 is a deficient number, since it is larger than the sum of its proper divisors (9241).

13329839 is an equidigital number, since it uses as much as digits as its factorization.

13329839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9240.

The product of its digits is 34992, while the sum is 38.

The square root of 13329839 is about 3651.0052040500. The cubic root of 13329839 is about 237.1055035381.

Subtracting from 13329839 its sum of digits (38), we obtain a square (13329801 = 3651²).

The spelling of 13329839 in words is "thirteen million, three hundred twenty-nine thousand, eight hundred thirty-nine".