6684443 has 2 divisors, whose sum is σ = 6684444. Its totient is φ = 6684442.

The previous prime is 6684373. The next prime is 6684449. The reversal of 6684443 is 3444866.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6684443 - 2¹⁴ = 6668059 is a prime.

It is not a weakly prime, because it can be changed into another prime (6684449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3342221 + 3342222.

It is an arithmetic number, because the mean of its divisors is an integer number (3342222).

Almost surely, 2^6684443 is an apocalyptic number.

6684443 is a deficient number, since it is larger than the sum of its proper divisors (1).

6684443 is an equidigital number, since it uses as much as digits as its factorization.

6684443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 35.

The square root of 6684443 is about 2585.4289779454. The cubic root of 6684443 is about 188.3743390146.

The spelling of 6684443 in words is "six million, six hundred eighty-four thousand, four hundred forty-three".