13885749 has 12 divisors (see below), whose sum is σ = 20800416. Its totient is φ = 9257004.

The previous prime is 13885747. The next prime is 13885793. The reversal of 13885749 is 94758831.

It is not a de Polignac number, because 13885749 - 2¹ = 13885747 is a prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13885747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28329 + ... + 28814.

It is an arithmetic number, because the mean of its divisors is an integer number (1733368).

Almost surely, 2^13885749 is an apocalyptic number.

It is an amenable number.

13885749 is a deficient number, since it is larger than the sum of its proper divisors (6914667).

13885749 is an frugal number, since it uses more digits than its factorization.

13885749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57158 (or 57146 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 13885749 is about 3726.3586783883. The cubic root of 13885749 is about 240.3568130058.

The spelling of 13885749 in words is "thirteen million, eight hundred eighty-five thousand, seven hundred forty-nine".