63914881 has 2 divisors, whose sum is σ = 63914882. Its totient is φ = 63914880.

The previous prime is 63914833. The next prime is 63914911. The reversal of 63914881 is 18841936.

63914881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61481281 + 2433600 = 7841^2 + 1560^2 .

It is a cyclic number.

It is not a de Polignac number, because 63914881 - 2¹⁷ = 63783809 is a prime.

It is a super-2 number, since 2×63914881² = 8170224026488322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (63914821) 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, 31957440 + 31957441.

It is an arithmetic number, because the mean of its divisors is an integer number (31957441).

Almost surely, 2^63914881 is an apocalyptic number.

It is an amenable number.

63914881 is a deficient number, since it is larger than the sum of its proper divisors (1).

63914881 is an equidigital number, since it uses as much as digits as its factorization.

63914881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 40.

The square root of 63914881 is about 7994.6782924643. The cubic root of 63914881 is about 399.8225900759.

The spelling of 63914881 in words is "sixty-three million, nine hundred fourteen thousand, eight hundred eighty-one".