13888679 has 8 divisors (see below), whose sum is σ = 15899808. Its totient is φ = 11884320.

The previous prime is 13888669. The next prime is 13888723. The reversal of 13888679 is 97688831.

It is a happy number.

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

It is not a de Polignac number, because 13888679 - 2²⁰ = 12840103 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 (13888669) 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, 3989 + ... + 6609.

It is an arithmetic number, because the mean of its divisors is an integer number (1987476).

Almost surely, 2^13888679 is an apocalyptic number.

13888679 is a deficient number, since it is larger than the sum of its proper divisors (2011129).

13888679 is an equidigital number, since it uses as much as digits as its factorization.

13888679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3385.

The product of its digits is 580608, while the sum is 50.

The square root of 13888679 is about 3726.7518028439. The cubic root of 13888679 is about 240.3737175298.

The spelling of 13888679 in words is "thirteen million, eight hundred eighty-eight thousand, six hundred seventy-nine".