13444689 has 8 divisors (see below), whose sum is σ = 18194080. Its totient is φ = 8829216.

The previous prime is 13444663. The next prime is 13444721. The reversal of 13444689 is 98644431.

It is a happy number.

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

It is not a de Polignac number, because 13444689 - 2¹¹ = 13442641 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (13444619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33244 + ... + 33645.

It is an arithmetic number, because the mean of its divisors is an integer number (2274260).

Almost surely, 2^13444689 is an apocalyptic number.

It is an amenable number.

13444689 is a deficient number, since it is larger than the sum of its proper divisors (4749391).

13444689 is an equidigital number, since it uses as much as digits as its factorization.

13444689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66959.

The product of its digits is 82944, while the sum is 39.

The square root of 13444689 is about 3666.7000149999. The cubic root of 13444689 is about 237.7845247468.

The spelling of 13444689 in words is "thirteen million, four hundred forty-four thousand, six hundred eighty-nine".