63668207 has 2 divisors, whose sum is σ = 63668208. Its totient is φ = 63668206.

The previous prime is 63668167. The next prime is 63668219. The reversal of 63668207 is 70286636.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63668207 - 2⁸ = 63667951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63668287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31834103 + 31834104.

It is an arithmetic number, because the mean of its divisors is an integer number (31834104).

Almost surely, 2^63668207 is an apocalyptic number.

63668207 is a deficient number, since it is larger than the sum of its proper divisors (1).

63668207 is an equidigital number, since it uses as much as digits as its factorization.

63668207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 63668207 is about 7979.2359909956. The cubic root of 63668207 is about 399.3075666150.

The spelling of 63668207 in words is "sixty-three million, six hundred sixty-eight thousand, two hundred seven".