13827239 has 4 divisors (see below), whose sum is σ = 14640624. Its totient is φ = 13013856.

The previous prime is 13827227. The next prime is 13827241. The reversal of 13827239 is 93272831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93272831 = 31 ⋅3008801.

It is a cyclic number.

It is not a de Polignac number, because 13827239 - 2⁸ = 13826983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13827199 and 13827208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13827139) 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, 406667 + ... + 406700.

It is an arithmetic number, because the mean of its divisors is an integer number (3660156).

Almost surely, 2^13827239 is an apocalyptic number.

13827239 is a deficient number, since it is larger than the sum of its proper divisors (813385).

13827239 is an equidigital number, since it uses as much as digits as its factorization.

13827239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813384.

The product of its digits is 18144, while the sum is 35.

The square root of 13827239 is about 3718.4995629958. The cubic root of 13827239 is about 240.0187427492.

The spelling of 13827239 in words is "thirteen million, eight hundred twenty-seven thousand, two hundred thirty-nine".