63863287 has 2 divisors, whose sum is σ = 63863288. Its totient is φ = 63863286.

The previous prime is 63863273. The next prime is 63863309. The reversal of 63863287 is 78236836.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63863287 - 2¹⁹ = 63338999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63863207) 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, 31931643 + 31931644.

It is an arithmetic number, because the mean of its divisors is an integer number (31931644).

Almost surely, 2^63863287 is an apocalyptic number.

63863287 is a deficient number, since it is larger than the sum of its proper divisors (1).

63863287 is an equidigital number, since it uses as much as digits as its factorization.

63863287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 43.

The square root of 63863287 is about 7991.4508695230. The cubic root of 63863287 is about 399.7149782047.

The spelling of 63863287 in words is "sixty-three million, eight hundred sixty-three thousand, two hundred eighty-seven".