6443443 has 8 divisors (see below), whose sum is σ = 6681600. Its totient is φ = 6207240.

The previous prime is 6443429. The next prime is 6443447. The reversal of 6443443 is 3443446.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6443443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6443447) 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, 10458 + ... + 11056.

It is an arithmetic number, because the mean of its divisors is an integer number (835200).

Almost surely, 2^6443443 is an apocalyptic number.

6443443 is a deficient number, since it is larger than the sum of its proper divisors (238157).

6443443 is a wasteful number, since it uses less digits than its factorization.

6443443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977.

The product of its digits is 13824, while the sum is 28.

The square root of 6443443 is about 2538.3937834780. The cubic root of 6443443 is about 186.0826991867.

Adding to 6443443 its reverse (3443446), we get a palindrome (9886889).

It can be divided in two parts, 6443 and 443, that added together give a palindrome (6886).

The spelling of 6443443 in words is "six million, four hundred forty-three thousand, four hundred forty-three".