6606443 has 2 divisors, whose sum is σ = 6606444. Its totient is φ = 6606442.

The previous prime is 6606437. The next prime is 6606463. The reversal of 6606443 is 3446066.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6606443 - 2¹² = 6602347 is a prime.

It is a super-2 number, since 2×6606443² = 87290178224498, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6606463) 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 as a sum of consecutive naturals, namely, 3303221 + 3303222.

It is an arithmetic number, because the mean of its divisors is an integer number (3303222).

Almost surely, 2^6606443 is an apocalyptic number.

6606443 is a deficient number, since it is larger than the sum of its proper divisors (1).

6606443 is an equidigital number, since it uses as much as digits as its factorization.

6606443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 6606443 is about 2570.3001770221. The cubic root of 6606443 is about 187.6387642416.

The spelling of 6606443 in words is "six million, six hundred six thousand, four hundred forty-three".