63633472 has 28 divisors (see below), whose sum is σ = 144312640. Its totient is φ = 27271296.

The previous prime is 63633469. The next prime is 63633481. The reversal of 63633472 is 27433636.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

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, 70572 + ... + 71467.

Almost surely, 2^63633472 is an apocalyptic number.

It is an amenable number.

63633472 is an abundant number, since it is smaller than the sum of its proper divisors (80679168).

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

63633472 is a wasteful number, since it uses less digits than its factorization.

63633472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142058 (or 142048 counting only the distinct ones).

The product of its digits is 54432, while the sum is 34.

The square root of 63633472 is about 7977.0591072149. The cubic root of 63633472 is about 399.2349376319.

The spelling of 63633472 in words is "sixty-three million, six hundred thirty-three thousand, four hundred seventy-two".