63315899 has 2 divisors, whose sum is σ = 63315900. Its totient is φ = 63315898.

The previous prime is 63315887. The next prime is 63315907. The reversal of 63315899 is 99851336.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63315899 - 2⁸ = 63315643 is a prime.

It is not a weakly prime, because it can be changed into another prime (63315839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31657949 + 31657950.

It is an arithmetic number, because the mean of its divisors is an integer number (31657950).

Almost surely, 2^63315899 is an apocalyptic number.

63315899 is a deficient number, since it is larger than the sum of its proper divisors (1).

63315899 is an equidigital number, since it uses as much as digits as its factorization.

63315899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 174960, while the sum is 44.

The square root of 63315899 is about 7957.1288163508. The cubic root of 63315899 is about 398.5696811495.

The spelling of 63315899 in words is "sixty-three million, three hundred fifteen thousand, eight hundred ninety-nine".