13487299 has 6 divisors (see below), whose sum is σ = 15689364. Its totient is φ = 11560500.

The previous prime is 13487297. The next prime is 13487323. The reversal of 13487299 is 99278431.

13487299 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13487299 - 2¹ = 13487297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13487293) 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 5 ways as a sum of consecutive naturals, for example, 137577 + ... + 137674.

It is an arithmetic number, because the mean of its divisors is an integer number (2614894).

Almost surely, 2^13487299 is an apocalyptic number.

13487299 is a deficient number, since it is larger than the sum of its proper divisors (2202065).

13487299 is an equidigital number, since it uses as much as digits as its factorization.

13487299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275265 (or 275258 counting only the distinct ones).

The product of its digits is 108864, while the sum is 43.

The square root of 13487299 is about 3672.5058202813. The cubic root of 13487299 is about 238.0354618440.

The spelling of 13487299 in words is "thirteen million, four hundred eighty-seven thousand, two hundred ninety-nine".