63764863 has 2 divisors, whose sum is σ = 63764864. Its totient is φ = 63764862.

The previous prime is 63764849. The next prime is 63764903. The reversal of 63764863 is 36846736.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63764863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63767863) 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, 31882431 + 31882432.

It is an arithmetic number, because the mean of its divisors is an integer number (31882432).

Almost surely, 2^63764863 is an apocalyptic number.

63764863 is a deficient number, since it is larger than the sum of its proper divisors (1).

63764863 is an equidigital number, since it uses as much as digits as its factorization.

63764863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 43.

The square root of 63764863 is about 7985.2904142555. The cubic root of 63764863 is about 399.5095300940.

The spelling of 63764863 in words is "sixty-three million, seven hundred sixty-four thousand, eight hundred sixty-three".