13885239 has 8 divisors (see below), whose sum is σ = 18541312. Its totient is φ = 9243000.

The previous prime is 13885213. The next prime is 13885253. The reversal of 13885239 is 93258831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13885239 - 2⁹ = 13884727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13885197 and 13885206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13885279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 829 + ... + 5334.

It is an arithmetic number, because the mean of its divisors is an integer number (2317664).

Almost surely, 2^13885239 is an apocalyptic number.

13885239 is a deficient number, since it is larger than the sum of its proper divisors (4656073).

13885239 is an equidigital number, since it uses as much as digits as its factorization.

13885239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6917.

The product of its digits is 51840, while the sum is 39.

The square root of 13885239 is about 3726.2902463442. The cubic root of 13885239 is about 240.3538703371.

The spelling of 13885239 in words is "thirteen million, eight hundred eighty-five thousand, two hundred thirty-nine".