13326389 has 4 divisors (see below), whose sum is σ = 13552320. Its totient is φ = 13100460.

The previous prime is 13326377. The next prime is 13326403. The reversal of 13326389 is 98362331.

13326389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 an emirpimes, since its reverse is a distinct semiprime: 98362331 = 4051 ⋅24281.

It is a cyclic number.

It is not a de Polignac number, because 13326389 - 2⁸ = 13326133 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13326329) 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, 112877 + ... + 112994.

It is an arithmetic number, because the mean of its divisors is an integer number (3388080).

Almost surely, 2^13326389 is an apocalyptic number.

It is an amenable number.

13326389 is a deficient number, since it is larger than the sum of its proper divisors (225931).

13326389 is an equidigital number, since it uses as much as digits as its factorization.

13326389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225930.

The product of its digits is 23328, while the sum is 35.

The square root of 13326389 is about 3650.5327008534. The cubic root of 13326389 is about 237.0850460624.

The spelling of 13326389 in words is "thirteen million, three hundred twenty-six thousand, three hundred eighty-nine".