63634896 has 120 divisors (see below), whose sum is σ = 199049760. Its totient is φ = 19564416.

The previous prime is 63634867. The next prime is 63634913. The reversal of 63634896 is 69843636.

63634896 is a `hidden beast` number, since 6 + 3 + 634 + 8 + 9 + 6 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49915 + ... + 51173.

It is an arithmetic number, because the mean of its divisors is an integer number (1658748).

Almost surely, 2^63634896 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 63634896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99524880).

63634896 is an abundant number, since it is smaller than the sum of its proper divisors (135414864).

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

63634896 is a wasteful number, since it uses less digits than its factorization.

63634896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295 (or 1277 counting only the distinct ones).

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

The square root of 63634896 is about 7977.1483626669. The cubic root of 63634896 is about 399.2379156574.

The spelling of 63634896 in words is "sixty-three million, six hundred thirty-four thousand, eight hundred ninety-six".