63676728 has 96 divisors (see below), whose sum is σ = 182108160. Its totient is φ = 20070720.

The previous prime is 63676709. The next prime is 63676751. The reversal of 63676728 is 82767636.

63676728 is a `hidden beast` number, since 636 + 7 + 6 + 7 + 2 + 8 = 666.

63676728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104601 + ... + 105207.

It is an arithmetic number, because the mean of its divisors is an integer number (1896960).

Almost surely, 2^63676728 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 63676728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91054080).

63676728 is an abundant number, since it is smaller than the sum of its proper divisors (118431432).

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

63676728 is a wasteful number, since it uses less digits than its factorization.

63676728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697 (or 690 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The square root of 63676728 is about 7979.7699214952. The cubic root of 63676728 is about 399.3253795243.

The spelling of 63676728 in words is "sixty-three million, six hundred seventy-six thousand, seven hundred twenty-eight".