63968585 has 16 divisors (see below), whose sum is σ = 78316416. Its totient is φ = 50147328.

The previous prime is 63968561. The next prime is 63968599. The reversal of 63968585 is 58586936.

It is a cyclic number.

It is not a de Polignac number, because 63968585 - 2⁶ = 63968521 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85724 + ... + 86466.

It is an arithmetic number, because the mean of its divisors is an integer number (4894776).

Almost surely, 2^63968585 is an apocalyptic number.

It is an amenable number.

63968585 is a deficient number, since it is larger than the sum of its proper divisors (14347831).

63968585 is a wasteful number, since it uses less digits than its factorization.

63968585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072.

The product of its digits is 1555200, while the sum is 50.

The square root of 63968585 is about 7998.0363214979. The cubic root of 63968585 is about 399.9345413718.

The spelling of 63968585 in words is "sixty-three million, nine hundred sixty-eight thousand, five hundred eighty-five".