13444207 has 4 divisors (see below), whose sum is σ = 15364816. Its totient is φ = 11523600.

The previous prime is 13444157. The next prime is 13444231. The reversal of 13444207 is 70244431.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13444207 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 (13444237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 960294 + ... + 960307.

It is an arithmetic number, because the mean of its divisors is an integer number (3841204).

Almost surely, 2^13444207 is an apocalyptic number.

13444207 is a deficient number, since it is larger than the sum of its proper divisors (1920609).

13444207 is an equidigital number, since it uses as much as digits as its factorization.

13444207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1920608.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 13444207 is about 3666.6342877358. The cubic root of 13444207 is about 237.7816831412.

Adding to 13444207 its reverse (70244431), we get a palindrome (83688638).

The spelling of 13444207 in words is "thirteen million, four hundred forty-four thousand, two hundred seven".