13839287 has 16 divisors (see below), whose sum is σ = 17362944. Its totient is φ = 10716000.

The previous prime is 13839271. The next prime is 13839311. The reversal of 13839287 is 78293831.

It is a cyclic number.

It is not a de Polignac number, because 13839287 - 2⁴ = 13839271 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 (13839247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14237 + ... + 15177.

It is an arithmetic number, because the mean of its divisors is an integer number (1085184).

Almost surely, 2^13839287 is an apocalyptic number.

13839287 is a deficient number, since it is larger than the sum of its proper divisors (3523657).

13839287 is a wasteful number, since it uses less digits than its factorization.

13839287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150.

The product of its digits is 72576, while the sum is 41.

The square root of 13839287 is about 3720.1192185198. The cubic root of 13839287 is about 240.0884338456.

It can be divided in two parts, 13839 and 287, that multiplied together give a palindrome (3971793).

The spelling of 13839287 in words is "thirteen million, eight hundred thirty-nine thousand, two hundred eighty-seven".