15798239 has 2 divisors, whose sum is σ = 15798240. Its totient is φ = 15798238.

The previous prime is 15798227. The next prime is 15798241. The reversal of 15798239 is 93289751.

It is a strong prime.

It is an emirp because it is prime and its reverse (93289751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15798239 - 2⁸ = 15797983 is a prime.

It is a super-2 number, since 2×15798239² = 499168711002242, which contains 22 as substring.

Together with 15798241, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15798239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15794239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7899119 + 7899120.

It is an arithmetic number, because the mean of its divisors is an integer number (7899120).

Almost surely, 2^15798239 is an apocalyptic number.

15798239 is a deficient number, since it is larger than the sum of its proper divisors (1).

15798239 is an equidigital number, since it uses as much as digits as its factorization.

15798239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 44.

The square root of 15798239 is about 3974.6998628827. The cubic root of 15798239 is about 250.9205475418.

The spelling of 15798239 in words is "fifteen million, seven hundred ninety-eight thousand, two hundred thirty-nine".