13849917 has 16 divisors (see below), whose sum is σ = 20583360. Its totient is φ = 8232192.

The previous prime is 13849909. The next prime is 13849921. The reversal of 13849917 is 71994831.

It is a happy number.

13849917 is nontrivially palindromic in base 16.

It is not a de Polignac number, because 13849917 - 2³ = 13849909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13841917) 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, 6178 + ... + 8115.

It is an arithmetic number, because the mean of its divisors is an integer number (1286460).

Almost surely, 2^13849917 is an apocalyptic number.

13849917 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

13849917 is a deficient number, since it is larger than the sum of its proper divisors (6733443).

13849917 is a wasteful number, since it uses less digits than its factorization.

13849917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14332.

The product of its digits is 54432, while the sum is 42.

The square root of 13849917 is about 3721.5476619278. The cubic root of 13849917 is about 240.1498890081.

The spelling of 13849917 in words is "thirteen million, eight hundred forty-nine thousand, nine hundred seventeen".