15339839 has 2 divisors, whose sum is σ = 15339840. Its totient is φ = 15339838.

The previous prime is 15339809. The next prime is 15339847. The reversal of 15339839 is 93893351.

It is a strong prime.

It is an emirp because it is prime and its reverse (93893351) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15339839 - 2¹² = 15335743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15339796 and 15339805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15339809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7669919 + 7669920.

It is an arithmetic number, because the mean of its divisors is an integer number (7669920).

Almost surely, 2^15339839 is an apocalyptic number.

15339839 is a deficient number, since it is larger than the sum of its proper divisors (1).

15339839 is an equidigital number, since it uses as much as digits as its factorization.

15339839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 87480, while the sum is 41.

The square root of 15339839 is about 3916.6106520817. The cubic root of 15339839 is about 248.4697943252.

The spelling of 15339839 in words is "fifteen million, three hundred thirty-nine thousand, eight hundred thirty-nine".