6644343 has 8 divisors (see below), whose sum is σ = 9047808. Its totient is φ = 4335224.

The previous prime is 6644327. The next prime is 6644359. The reversal of 6644343 is 3434466.

It is an interprime number because it is at equal distance from previous prime (6644327) and next prime (6644359).

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 6644343 - 2⁴ = 6644327 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 6644343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6644543) 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 7 ways as a sum of consecutive naturals, for example, 23421 + ... + 23702.

It is an arithmetic number, because the mean of its divisors is an integer number (1130976).

Almost surely, 2^6644343 is an apocalyptic number.

6644343 is a deficient number, since it is larger than the sum of its proper divisors (2403465).

6644343 is a wasteful number, since it uses less digits than its factorization.

6644343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47173.

The product of its digits is 20736, while the sum is 30.

The square root of 6644343 is about 2577.6623130271. The cubic root of 6644343 is about 187.9968971119.

The spelling of 6644343 in words is "six million, six hundred forty-four thousand, three hundred forty-three".