63866063 has 2 divisors, whose sum is σ = 63866064. Its totient is φ = 63866062.

The previous prime is 63866029. The next prime is 63866071. The reversal of 63866063 is 36066836.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63866063 - 2²⁰ = 62817487 is a prime.

It is a Sophie Germain prime.

It is equal to p_3777590 and since 63866063 and 3777590 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63866003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31933031 + 31933032.

It is an arithmetic number, because the mean of its divisors is an integer number (31933032).

Almost surely, 2^63866063 is an apocalyptic number.

63866063 is a deficient number, since it is larger than the sum of its proper divisors (1).

63866063 is an equidigital number, since it uses as much as digits as its factorization.

63866063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 38.

The square root of 63866063 is about 7991.6245532432. The cubic root of 63866063 is about 399.7207697048.

The spelling of 63866063 in words is "sixty-three million, eight hundred sixty-six thousand, sixty-three".