13444417 has 4 divisors (see below), whose sum is σ = 15365056. Its totient is φ = 11523780.

The previous prime is 13444373. The next prime is 13444469. The reversal of 13444417 is 71444431.

13444417 is digitally balanced in base 3, 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: 71444431 = 449 ⋅159119.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13444417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13444477) 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, 960309 + ... + 960322.

It is an arithmetic number, because the mean of its divisors is an integer number (3841264).

Almost surely, 2^13444417 is an apocalyptic number.

It is an amenable number.

13444417 is a deficient number, since it is larger than the sum of its proper divisors (1920639).

13444417 is an equidigital number, since it uses as much as digits as its factorization.

13444417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1920638.

The product of its digits is 5376, while the sum is 28.

The square root of 13444417 is about 3666.6629242405. The cubic root of 13444417 is about 237.7829211935.

Adding to 13444417 its reverse (71444431), we get a palindrome (84888848).

It can be divided in two parts, 13444 and 417, that added together give a triangular number (13861 = T₁₆₆).

The spelling of 13444417 in words is "thirteen million, four hundred forty-four thousand, four hundred seventeen".