13739879 has 8 divisors (see below), whose sum is σ = 14342832. Its totient is φ = 13149760.

The previous prime is 13739821. The next prime is 13739897. The reversal of 13739879 is 97893731.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13739879 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 (13739279) 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, 989 + ... + 5334.

It is an arithmetic number, because the mean of its divisors is an integer number (1792854).

Almost surely, 2^13739879 is an apocalyptic number.

13739879 is a deficient number, since it is larger than the sum of its proper divisors (602953).

13739879 is an equidigital number, since it uses as much as digits as its factorization.

13739879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6417.

The product of its digits is 285768, while the sum is 47.

The square root of 13739879 is about 3706.7342769613. The cubic root of 13739879 is about 239.5121978670.

The spelling of 13739879 in words is "thirteen million, seven hundred thirty-nine thousand, eight hundred seventy-nine".