63768667 has 2 divisors, whose sum is σ = 63768668. Its totient is φ = 63768666.

The previous prime is 63768647. The next prime is 63768689. The reversal of 63768667 is 76686736.

63768667 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 a de Polignac number, because none of the positive numbers 2^k-63768667 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63768667.

It is not a weakly prime, because it can be changed into another prime (63768637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31884333 + 31884334.

It is an arithmetic number, because the mean of its divisors is an integer number (31884334).

Almost surely, 2^63768667 is an apocalyptic number.

63768667 is a deficient number, since it is larger than the sum of its proper divisors (1).

63768667 is an equidigital number, since it uses as much as digits as its factorization.

63768667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1524096, while the sum is 49.

The square root of 63768667 is about 7985.5285986590. The cubic root of 63768667 is about 399.5174744067.

It can be divided in two parts, 6 and 3768667, that added together give a palindrome (3768673).

The spelling of 63768667 in words is "sixty-three million, seven hundred sixty-eight thousand, six hundred sixty-seven".