13839293 has 8 divisors (see below), whose sum is σ = 15418200. Its totient is φ = 12333888.

The previous prime is 13839271. The next prime is 13839311. The reversal of 13839293 is 39293831.

It can be written as a sum of positive squares in 4 ways, for example, as 458329 + 13380964 = 677^2 + 3658^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 13839293 - 2⁶ = 13839229 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13839493) 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, 17978 + ... + 18731.

It is an arithmetic number, because the mean of its divisors is an integer number (1927275).

Almost surely, 2^13839293 is an apocalyptic number.

13839293 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13839293 is a deficient number, since it is larger than the sum of its proper divisors (1578907).

13839293 is a wasteful number, since it uses less digits than its factorization.

13839293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36751.

The product of its digits is 34992, while the sum is 38.

The square root of 13839293 is about 3720.1200249454. The cubic root of 13839293 is about 240.0884685422.

The spelling of 13839293 in words is "thirteen million, eight hundred thirty-nine thousand, two hundred ninety-three".