63780984 has 48 divisors (see below), whose sum is σ = 174010200. Its totient is φ = 21104064.

The previous prime is 63780979. The next prime is 63780989. The reversal of 63780984 is 48908736.

It is a happy number.

63780984 is a `hidden beast` number, since 637 + 8 + 0 + 9 + 8 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (63780979) and next prime (63780989).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63780989) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6822 + ... + 13194.

Almost surely, 2^63780984 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 63780984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87005100).

63780984 is an abundant number, since it is smaller than the sum of its proper divisors (110229216).

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

63780984 is a wasteful number, since it uses less digits than its factorization.

63780984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6524 (or 6517 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 63780984 is about 7986.2997689794. The cubic root of 63780984 is about 399.5431951887.

The spelling of 63780984 in words is "sixty-three million, seven hundred eighty thousand, nine hundred eighty-four".