63664424 has 16 divisors (see below), whose sum is σ = 122147520. Its totient is φ = 31091760.

The previous prime is 63664417. The next prime is 63664427. The reversal of 63664424 is 42446636.

63664424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (63664427) 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 in 3 ways as a sum of consecutive naturals, for example, 92192 + ... + 92879.

It is an arithmetic number, because the mean of its divisors is an integer number (7634220).

Almost surely, 2^63664424 is an apocalyptic number.

It is an amenable number.

63664424 is a deficient number, since it is larger than the sum of its proper divisors (58483096).

63664424 is a wasteful number, since it uses less digits than its factorization.

63664424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185120 (or 185116 counting only the distinct ones).

The product of its digits is 82944, while the sum is 35.

The square root of 63664424 is about 7978.9989347035. The cubic root of 63664424 is about 399.2996578512.

The spelling of 63664424 in words is "sixty-three million, six hundred sixty-four thousand, four hundred twenty-four".