3306643 has 2 divisors, whose sum is σ = 3306644. Its totient is φ = 3306642.

The previous prime is 3306631. The next prime is 3306647. The reversal of 3306643 is 3466033.

3306643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (3466033) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3306643 - 2⁹ = 3306131 is a prime.

3306643 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (3306647) 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 as a sum of consecutive naturals, namely, 1653321 + 1653322.

It is an arithmetic number, because the mean of its divisors is an integer number (1653322).

Almost surely, 2^3306643 is an apocalyptic number.

3306643 is a deficient number, since it is larger than the sum of its proper divisors (1).

3306643 is an equidigital number, since it uses as much as digits as its factorization.

3306643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 25.

The square root of 3306643 is about 1818.4177187874. The cubic root of 3306643 is about 148.9803886925.

The spelling of 3306643 in words is "three million, three hundred six thousand, six hundred forty-three".