660003343 has 2 divisors, whose sum is σ = 660003344. Its totient is φ = 660003342.

The previous prime is 660003317. The next prime is 660003349. The reversal of 660003343 is 343300066.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 660003343 - 2⁹ = 660002831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (660003349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330001671 + 330001672.

It is an arithmetic number, because the mean of its divisors is an integer number (330001672).

Almost surely, 2^660003343 is an apocalyptic number.

660003343 is a deficient number, since it is larger than the sum of its proper divisors (1).

660003343 is an equidigital number, since it uses as much as digits as its factorization.

660003343 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 660003343 is about 25690.5302202971. The cubic root of 660003343 is about 870.6602391211.

The spelling of 660003343 in words is "six hundred sixty million, three thousand, three hundred forty-three".