63917089 has 2 divisors, whose sum is σ = 63917090. Its totient is φ = 63917088.

The previous prime is 63917033. The next prime is 63917101. The reversal of 63917089 is 98071936.

63917089 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., 62536464 + 1380625 = 7908^2 + 1175^2 .

It is a cyclic number.

It is not a de Polignac number, because 63917089 - 2¹⁵ = 63884321 is a prime.

It is not a weakly prime, because it can be changed into another prime (63912089) 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, 31958544 + 31958545.

It is an arithmetic number, because the mean of its divisors is an integer number (31958545).

Almost surely, 2^63917089 is an apocalyptic number.

It is an amenable number.

63917089 is a deficient number, since it is larger than the sum of its proper divisors (1).

63917089 is an equidigital number, since it uses as much as digits as its factorization.

63917089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 63917089 is about 7994.8163831323. The cubic root of 63917089 is about 399.8271941061.

The spelling of 63917089 in words is "sixty-three million, nine hundred seventeen thousand, eighty-nine".