13919679 has 12 divisors (see below), whose sum is σ = 20285616. Its totient is φ = 9196992.

The previous prime is 13919663. The next prime is 13919683. The reversal of 13919679 is 97691931.

It is not a de Polignac number, because 13919679 - 2⁴ = 13919663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13919629) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5827 + ... + 7860.

It is an arithmetic number, because the mean of its divisors is an integer number (1690468).

Almost surely, 2^13919679 is an apocalyptic number.

13919679 is a deficient number, since it is larger than the sum of its proper divisors (6365937).

13919679 is a wasteful number, since it uses less digits than its factorization.

13919679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13806 (or 13803 counting only the distinct ones).

The product of its digits is 91854, while the sum is 45.

The square root of 13919679 is about 3730.9086024721. The cubic root of 13919679 is about 240.5524253835.

The spelling of 13919679 in words is "thirteen million, nine hundred nineteen thousand, six hundred seventy-nine".