63996586 has 16 divisors (see below), whose sum is σ = 99525888. Its totient is φ = 30830400.

The previous prime is 63996577. The next prime is 63996589. The reversal of 63996586 is 68569936.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (63996589) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 12801 + ... + 17083.

It is an arithmetic number, because the mean of its divisors is an integer number (6220368).

Almost surely, 2^63996586 is an apocalyptic number.

63996586 is a deficient number, since it is larger than the sum of its proper divisors (35529302).

63996586 is a wasteful number, since it uses less digits than its factorization.

63996586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4557.

The product of its digits is 2099520, while the sum is 52.

The square root of 63996586 is about 7999.7866221544. The cubic root of 63996586 is about 399.9928873735.

The spelling of 63996586 in words is "sixty-three million, nine hundred ninety-six thousand, five hundred eighty-six".