13854439 has 16 divisors (see below), whose sum is σ = 15724800. Its totient is φ = 12127104.

The previous prime is 13854403. The next prime is 13854457. The reversal of 13854439 is 93445831.

It is a cyclic number.

It is not a de Polignac number, because 13854439 - 2⁹ = 13853927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13854398 and 13854407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13854499) 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, 18694 + ... + 19420.

It is an arithmetic number, because the mean of its divisors is an integer number (982800).

Almost surely, 2^13854439 is an apocalyptic number.

13854439 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

13854439 is a deficient number, since it is larger than the sum of its proper divisors (1870361).

13854439 is a wasteful number, since it uses less digits than its factorization.

13854439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822.

The product of its digits is 51840, while the sum is 37.

The square root of 13854439 is about 3722.1551552830. The cubic root of 13854439 is about 240.1760224892.

The spelling of 13854439 in words is "thirteen million, eight hundred fifty-four thousand, four hundred thirty-nine".