13344447 has 4 divisors (see below), whose sum is σ = 17792600. Its totient is φ = 8896296.

The previous prime is 13344433. The next prime is 13344449. The reversal of 13344447 is 74444331.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13344447 - 2⁴ = 13344431 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13344449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2224072 + ... + 2224077.

It is an arithmetic number, because the mean of its divisors is an integer number (4448150).

Almost surely, 2^13344447 is an apocalyptic number.

13344447 is a deficient number, since it is larger than the sum of its proper divisors (4448153).

13344447 is an equidigital number, since it uses as much as digits as its factorization.

13344447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4448152.

The product of its digits is 16128, while the sum is 30.

The square root of 13344447 is about 3653.0052012008. The cubic root of 13344447 is about 237.1920855469.

Adding to 13344447 its reverse (74444331), we get a palindrome (87788778).

The spelling of 13344447 in words is "thirteen million, three hundred forty-four thousand, four hundred forty-seven".