13728299 has 8 divisors (see below), whose sum is σ = 15654240. Its totient is φ = 11926656.

The previous prime is 13728289. The next prime is 13728301. The reversal of 13728299 is 99282731.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-13728299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13728229) 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 7 ways as a sum of consecutive naturals, for example, 30839 + ... + 31280.

It is an arithmetic number, because the mean of its divisors is an integer number (1956780).

Almost surely, 2^13728299 is an apocalyptic number.

13728299 is a deficient number, since it is larger than the sum of its proper divisors (1925941).

13728299 is a wasteful number, since it uses less digits than its factorization.

13728299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62149.

The product of its digits is 54432, while the sum is 41.

The square root of 13728299 is about 3705.1719258356. The cubic root of 13728299 is about 239.4448918205. Note that the first 3 decimals are identical.

The spelling of 13728299 in words is "thirteen million, seven hundred twenty-eight thousand, two hundred ninety-nine".