13339287 has 24 divisors (see below), whose sum is σ = 21656544. Its totient is φ = 7850304.

The previous prime is 13339283. The next prime is 13339289. The reversal of 13339287 is 78293331.

It is a happy number.

It is not a de Polignac number, because 13339287 - 2² = 13339283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13339283) 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 23 ways as a sum of consecutive naturals, for example, 213 + ... + 5169.

It is an arithmetic number, because the mean of its divisors is an integer number (902356).

Almost surely, 2^13339287 is an apocalyptic number.

13339287 is a deficient number, since it is larger than the sum of its proper divisors (8317257).

13339287 is a wasteful number, since it uses less digits than its factorization.

13339287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4999 (or 4996 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 13339287 is about 3652.2988650985. The cubic root of 13339287 is about 237.1615093092.

The spelling of 13339287 in words is "thirteen million, three hundred thirty-nine thousand, two hundred eighty-seven".