13889343 has 8 divisors (see below), whose sum is σ = 19943728. Its totient is φ = 8547264.

The previous prime is 13889327. The next prime is 13889353. The reversal of 13889343 is 34398831.

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

It is not a de Polignac number, because 13889343 - 2⁴ = 13889327 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 356137 = 13889343 / (1 + 3 + 8 + 8 + 9 + 3 + 4 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13889353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178030 + ... + 178107.

It is an arithmetic number, because the mean of its divisors is an integer number (2492966).

Almost surely, 2^13889343 is an apocalyptic number.

13889343 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13889343 is a deficient number, since it is larger than the sum of its proper divisors (6054385).

13889343 is a wasteful number, since it uses less digits than its factorization.

13889343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356153.

The product of its digits is 62208, while the sum is 39.

The square root of 13889343 is about 3726.8408874005. The cubic root of 13889343 is about 240.3775481222.

It can be divided in two parts, 1388 and 9343, that added together give a triangular number (10731 = T₁₄₆).

The spelling of 13889343 in words is "thirteen million, eight hundred eighty-nine thousand, three hundred forty-three".