13443879 has 4 divisors (see below), whose sum is σ = 17925176. Its totient is φ = 8962584.

The previous prime is 13443853. The next prime is 13443919. The reversal of 13443879 is 97834431.

13443879 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97834431 = 3 ⋅32611477.

It is not a de Polignac number, because 13443879 - 2⁵ = 13443847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13443809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2240644 + ... + 2240649.

It is an arithmetic number, because the mean of its divisors is an integer number (4481294).

Almost surely, 2^13443879 is an apocalyptic number.

13443879 is a deficient number, since it is larger than the sum of its proper divisors (4481297).

13443879 is an equidigital number, since it uses as much as digits as its factorization.

13443879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4481296.

The product of its digits is 72576, while the sum is 39.

The square root of 13443879 is about 3666.5895597953. The cubic root of 13443879 is about 237.7797493957.

The spelling of 13443879 in words is "thirteen million, four hundred forty-three thousand, eight hundred seventy-nine".