63893312 has 28 divisors (see below), whose sum is σ = 144901920. Its totient is φ = 27382656.

The previous prime is 63893311. The next prime is 63893363. The reversal of 63893312 is 21339836.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63893311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70862 + ... + 71757.

Almost surely, 2^63893312 is an apocalyptic number.

It is an amenable number.

63893312 is an abundant number, since it is smaller than the sum of its proper divisors (81008608).

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

63893312 is a wasteful number, since it uses less digits than its factorization.

63893312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142638 (or 142628 counting only the distinct ones).

The product of its digits is 23328, while the sum is 35.

The square root of 63893312 is about 7993.3292187924. The cubic root of 63893312 is about 399.7776097126. Note that the first 3 decimals are identical.

The spelling of 63893312 in words is "sixty-three million, eight hundred ninety-three thousand, three hundred twelve".