13867609 has 8 divisors (see below), whose sum is σ = 16148160. Its totient is φ = 11661936.

The previous prime is 13867589. The next prime is 13867639. The reversal of 13867609 is 90676831.

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

It is a cyclic number.

It is not a de Polignac number, because 13867609 - 2⁵ = 13867577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13867639) 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, 18319 + ... + 19060.

It is an arithmetic number, because the mean of its divisors is an integer number (2018520).

Almost surely, 2^13867609 is an apocalyptic number.

It is an amenable number.

13867609 is a deficient number, since it is larger than the sum of its proper divisors (2280551).

13867609 is an equidigital number, since it uses as much as digits as its factorization.

13867609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37439.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 13867609 is about 3723.9238714023. The cubic root of 13867609 is about 240.2521019912.

The spelling of 13867609 in words is "thirteen million, eight hundred sixty-seven thousand, six hundred nine".