13378589 has 4 divisors (see below), whose sum is σ = 15289824. Its totient is φ = 11467356.

The previous prime is 13378579. The next prime is 13378591. The reversal of 13378589 is 98587331.

It is a happy number.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13378589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13378549) 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, 955607 + ... + 955620.

It is an arithmetic number, because the mean of its divisors is an integer number (3822456).

Almost surely, 2^13378589 is an apocalyptic number.

It is an amenable number.

13378589 is a deficient number, since it is larger than the sum of its proper divisors (1911235).

13378589 is an equidigital number, since it uses as much as digits as its factorization.

13378589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911234.

The product of its digits is 181440, while the sum is 44.

The square root of 13378589 is about 3657.6753546481. The cubic root of 13378589 is about 237.3941999673.

The spelling of 13378589 in words is "thirteen million, three hundred seventy-eight thousand, five hundred eighty-nine".