13892439 has 16 divisors (see below), whose sum is σ = 21271680. Its totient is φ = 7976160.

The previous prime is 13892407. The next prime is 13892441. The reversal of 13892439 is 93429831.

13892439 is nontrivially palindromic in base 14.

It is not a de Polignac number, because 13892439 - 2⁵ = 13892407 is a prime.

It is a super-2 number, since 2×13892439² = 385999722737442, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13892397 and 13892406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13892539) 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 15 ways as a sum of consecutive naturals, for example, 10452 + ... + 11705.

It is an arithmetic number, because the mean of its divisors is an integer number (1329480).

Almost surely, 2^13892439 is an apocalyptic number.

13892439 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

13892439 is a deficient number, since it is larger than the sum of its proper divisors (7379241).

13892439 is a wasteful number, since it uses less digits than its factorization.

13892439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22190.

The product of its digits is 46656, while the sum is 39.

The square root of 13892439 is about 3727.2562294535. The cubic root of 13892439 is about 240.3954072247.

It can be divided in two parts, 1389 and 2439, that added together give a triangular number (3828 = T₈₇).

The spelling of 13892439 in words is "thirteen million, eight hundred ninety-two thousand, four hundred thirty-nine".