63984366 has 12 divisors (see below), whose sum is σ = 138632832. Its totient is φ = 21328116.

The previous prime is 63984337. The next prime is 63984373. The reversal of 63984366 is 66348936.

63984366 is a `hidden beast` number, since 639 + 8 + 4 + 3 + 6 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1777326 + ... + 1777361.

It is an arithmetic number, because the mean of its divisors is an integer number (11552736).

Almost surely, 2^63984366 is an apocalyptic number.

63984366 is an abundant number, since it is smaller than the sum of its proper divisors (74648466).

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

63984366 is a wasteful number, since it uses less digits than its factorization.

63984366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3554695 (or 3554692 counting only the distinct ones).

The product of its digits is 559872, while the sum is 45.

The square root of 63984366 is about 7999.0228153194. The cubic root of 63984366 is about 399.9674265142.

The spelling of 63984366 in words is "sixty-three million, nine hundred eighty-four thousand, three hundred sixty-six".