13368689 has 4 divisors (see below), whose sum is σ = 13376880. Its totient is φ = 13360500.

The previous prime is 13368683. The next prime is 13368697. The reversal of 13368689 is 98686331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13368689 - 2¹⁶ = 13303153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13368683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 719 + ... + 5220.

It is an arithmetic number, because the mean of its divisors is an integer number (3344220).

Almost surely, 2^13368689 is an apocalyptic number.

It is an amenable number.

13368689 is a deficient number, since it is larger than the sum of its proper divisors (8191).

13368689 is an equidigital number, since it uses as much as digits as its factorization.

13368689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8190.

The product of its digits is 186624, while the sum is 44.

The square root of 13368689 is about 3656.3217856201. The cubic root of 13368689 is about 237.3356292035.

The spelling of 13368689 in words is "thirteen million, three hundred sixty-eight thousand, six hundred eighty-nine".