63896784 has 80 divisors (see below), whose sum is σ = 192547200. Its totient is φ = 18251520.

The previous prime is 63896731. The next prime is 63896813. The reversal of 63896784 is 48769836.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14524 + ... + 18404.

It is an arithmetic number, because the mean of its divisors is an integer number (2406840).

Almost surely, 2^63896784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63896784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96273600).

63896784 is an abundant number, since it is smaller than the sum of its proper divisors (128650416).

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

63896784 is a wasteful number, since it uses less digits than its factorization.

63896784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3913 (or 3893 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 51.

The square root of 63896784 is about 7993.5463969380. The cubic root of 63896784 is about 399.7848509646.

The spelling of 63896784 in words is "sixty-three million, eight hundred ninety-six thousand, seven hundred eighty-four".