6444113 has 4 divisors (see below), whose sum is σ = 6939828. Its totient is φ = 5948400.

The previous prime is 6444083. The next prime is 6444121. The reversal of 6444113 is 3114446.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1117249 + 5326864 = 1057^2 + 2308^2 .

It is a cyclic number.

It is not a de Polignac number, because 6444113 - 2⁶ = 6444049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6444313) 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, 247838 + ... + 247863.

It is an arithmetic number, because the mean of its divisors is an integer number (1734957).

Almost surely, 2^6444113 is an apocalyptic number.

It is an amenable number.

6444113 is a deficient number, since it is larger than the sum of its proper divisors (495715).

6444113 is a wasteful number, since it uses less digits than its factorization.

6444113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495714.

The product of its digits is 1152, while the sum is 23.

The square root of 6444113 is about 2538.5257532670. The cubic root of 6444113 is about 186.0891486934.

Adding to 6444113 its reverse (3114446), we get a palindrome (9558559).

The spelling of 6444113 in words is "six million, four hundred forty-four thousand, one hundred thirteen".