6441443 has 8 divisors (see below), whose sum is σ = 6705600. Its totient is φ = 6182568.

The previous prime is 6441439. The next prime is 6441467. The reversal of 6441443 is 3441446.

6441443 is nontrivially palindromic in base 7.

It is a Cunningham number, because it is equal to 2538²-1.

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

It is a cyclic number.

It is not a de Polignac number, because 6441443 - 2² = 6441439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6441433) 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, 1268 + ... + 3806.

It is an arithmetic number, because the mean of its divisors is an integer number (838200).

Almost surely, 2^6441443 is an apocalyptic number.

6441443 is a deficient number, since it is larger than the sum of its proper divisors (264157).

6441443 is a wasteful number, since it uses less digits than its factorization.

6441443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2641.

The product of its digits is 4608, while the sum is 26.

The square root of 6441443 is about 2537.9998029945. Note that the first 3 decimals coincide. The cubic root of 6441443 is about 186.0634442681.

Adding to 6441443 its reverse (3441446), we get a palindrome (9882889).

The spelling of 6441443 in words is "six million, four hundred forty-one thousand, four hundred forty-three".