13849919 has 4 divisors (see below), whose sum is σ = 13873344. Its totient is φ = 13826496.

The previous prime is 13849909. The next prime is 13849921. The reversal of 13849919 is 91994831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13849919 - 2⁴ = 13849903 is a prime.

It is a super-2 number, since 2×13849919² = 383640512613122, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 13849919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13849909) 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, 10802 + ... + 12015.

It is an arithmetic number, because the mean of its divisors is an integer number (3468336).

Almost surely, 2^13849919 is an apocalyptic number.

13849919 is a deficient number, since it is larger than the sum of its proper divisors (23425).

13849919 is an equidigital number, since it uses as much as digits as its factorization.

13849919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23424.

The product of its digits is 69984, while the sum is 44.

The square root of 13849919 is about 3721.5479306332. The cubic root of 13849919 is about 240.1499005677.

The spelling of 13849919 in words is "thirteen million, eight hundred forty-nine thousand, nine hundred nineteen".