63990912 has 32 divisors (see below), whose sum is σ = 169976880. Its totient is φ = 21330176.

The previous prime is 63990833. The next prime is 63990929. The reversal of 63990912 is 21909936.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82938 + ... + 83705.

Almost surely, 2^63990912 is an apocalyptic number.

It is an amenable number.

63990912 is an abundant number, since it is smaller than the sum of its proper divisors (105985968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63990912 is a wasteful number, since it uses less digits than its factorization.

63990912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166660 (or 166648 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 39.

The square root of 63990912 is about 7999.4319798346. The cubic root of 63990912 is about 399.9810657704.

The spelling of 63990912 in words is "sixty-three million, nine hundred ninety thousand, nine hundred twelve".