13789919 has 16 divisors (see below), whose sum is σ = 16435104. Its totient is φ = 11404800.

The previous prime is 13789889. The next prime is 13789933. The reversal of 13789919 is 91998731.

It is a happy number.

It is not a de Polignac number, because 13789919 - 2⁸ = 13789663 is a prime.

It is a super-2 number, since 2×13789919² = 380323732053122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13789939) 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, 9779 + ... + 11099.

It is an arithmetic number, because the mean of its divisors is an integer number (1027194).

Almost surely, 2^13789919 is an apocalyptic number.

13789919 is a deficient number, since it is larger than the sum of its proper divisors (2645185).

13789919 is a wasteful number, since it uses less digits than its factorization.

13789919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1418.

The product of its digits is 122472, while the sum is 47.

The square root of 13789919 is about 3713.4780193237. The cubic root of 13789919 is about 239.8026096897.

The spelling of 13789919 in words is "thirteen million, seven hundred eighty-nine thousand, nine hundred nineteen".