663303247 has 2 divisors, whose sum is σ = 663303248. Its totient is φ = 663303246.

The previous prime is 663303227. The next prime is 663303293. The reversal of 663303247 is 742303366.

663303247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 663303247 - 2¹⁹ = 662778959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (663303227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331651623 + 331651624.

It is an arithmetic number, because the mean of its divisors is an integer number (331651624).

Almost surely, 2^663303247 is an apocalyptic number.

663303247 is a deficient number, since it is larger than the sum of its proper divisors (1).

663303247 is an equidigital number, since it uses as much as digits as its factorization.

663303247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 34.

The square root of 663303247 is about 25754.6742747797. The cubic root of 663303247 is about 872.1088783156.

The spelling of 663303247 in words is "six hundred sixty-three million, three hundred three thousand, two hundred forty-seven".