13879329 has 16 divisors (see below), whose sum is σ = 20009280. Its totient is φ = 8527680.

The previous prime is 13879321. The next prime is 13879331. The reversal of 13879329 is 92397831.

It is not a de Polignac number, because 13879329 - 2³ = 13879321 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13879321) 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, 1182 + ... + 5399.

It is an arithmetic number, because the mean of its divisors is an integer number (1250580).

Almost surely, 2^13879329 is an apocalyptic number.

13879329 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13879329 is a deficient number, since it is larger than the sum of its proper divisors (6129951).

13879329 is a wasteful number, since it uses less digits than its factorization.

13879329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6640.

The product of its digits is 81648, while the sum is 42.

The square root of 13879329 is about 3725.4971480327. The cubic root of 13879329 is about 240.3197647435.

The spelling of 13879329 in words is "thirteen million, eight hundred seventy-nine thousand, three hundred twenty-nine".