63676128 has 48 divisors (see below), whose sum is σ = 168739200. Its totient is φ = 21023616.

The previous prime is 63676127. The next prime is 63676147. The reversal of 63676128 is 82167636.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63676127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7173 + ... + 13371.

It is an arithmetic number, because the mean of its divisors is an integer number (3515400).

Almost surely, 2^63676128 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 63676128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84369600).

63676128 is an abundant number, since it is smaller than the sum of its proper divisors (105063072).

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

63676128 is a wasteful number, since it uses less digits than its factorization.

63676128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6319 (or 6311 counting only the distinct ones).

The product of its digits is 72576, while the sum is 39.

The square root of 63676128 is about 7979.7323263378. The cubic root of 63676128 is about 399.3241252933.

The spelling of 63676128 in words is "sixty-three million, six hundred seventy-six thousand, one hundred twenty-eight".