13684319 has 4 divisors (see below), whose sum is σ = 14928360. Its totient is φ = 12440280.

The previous prime is 13684291. The next prime is 13684331. The reversal of 13684319 is 91348631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91348631 = 11 ⋅8304421.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13684319 is a prime.

It is a super-2 number, since 2×13684319² = 374521172987522, 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 (13684399) 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, 622004 + ... + 622025.

It is an arithmetic number, because the mean of its divisors is an integer number (3732090).

Almost surely, 2^13684319 is an apocalyptic number.

13684319 is a deficient number, since it is larger than the sum of its proper divisors (1244041).

13684319 is a wasteful number, since it uses less digits than its factorization.

13684319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244040.

The product of its digits is 15552, while the sum is 35.

The square root of 13684319 is about 3699.2322176365. The cubic root of 13684319 is about 239.1889229424.

The spelling of 13684319 in words is "thirteen million, six hundred eighty-four thousand, three hundred nineteen".