663220007 has 2 divisors, whose sum is σ = 663220008. Its totient is φ = 663220006.

The previous prime is 663219923. The next prime is 663220021. The reversal of 663220007 is 700022366.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 663220007 - 2⁸ = 663219751 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (663220027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331610003 + 331610004.

It is an arithmetic number, because the mean of its divisors is an integer number (331610004).

Almost surely, 2^663220007 is an apocalyptic number.

663220007 is a deficient number, since it is larger than the sum of its proper divisors (1).

663220007 is an equidigital number, since it uses as much as digits as its factorization.

663220007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 663220007 is about 25753.0582067451. The cubic root of 663220007 is about 872.0723955654.

The spelling of 663220007 in words is "six hundred sixty-three million, two hundred twenty thousand, seven".