63808992 has 288 divisors, whose sum is σ = 221356800. Its totient is φ = 17791488.

The previous prime is 63808981. The next prime is 63808999. The reversal of 63808992 is 29980836.

63808992 is a `hidden beast` number, since 638 + 0 + 8 + 9 + 9 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63808999) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2774293 + ... + 2774315.

It is an arithmetic number, because the mean of its divisors is an integer number (768600).

Almost surely, 2^63808992 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 63808992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110678400).

63808992 is an abundant number, since it is smaller than the sum of its proper divisors (157547808).

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

63808992 is a wasteful number, since it uses less digits than its factorization.

63808992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 63808992 is about 7988.0530794431. The cubic root of 63808992 is about 399.6016701316.

The spelling of 63808992 in words is "sixty-three million, eight hundred eight thousand, nine hundred ninety-two".