13867249 has 12 divisors (see below), whose sum is σ = 15678000. Its totient is φ = 12163760.

The previous prime is 13867241. The next prime is 13867279. The reversal of 13867249 is 94276831.

It is not a de Polignac number, because 13867249 - 2³ = 13867241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13867241) 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, 8502 + ... + 10000.

It is an arithmetic number, because the mean of its divisors is an integer number (1306500).

Almost surely, 2^13867249 is an apocalyptic number.

It is an amenable number.

13867249 is a deficient number, since it is larger than the sum of its proper divisors (1810751).

13867249 is a wasteful number, since it uses less digits than its factorization.

13867249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568 (or 1539 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 13867249 is about 3723.8755349770. The cubic root of 13867249 is about 240.2500230098.

The spelling of 13867249 in words is "thirteen million, eight hundred sixty-seven thousand, two hundred forty-nine".