63704432 has 40 divisors (see below), whose sum is σ = 135229440. Its totient is φ = 28831680.

The previous prime is 63704413. The next prime is 63704441. The reversal of 63704432 is 23440736.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 63704395 and 63704404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49169 + ... + 50447.

It is an arithmetic number, because the mean of its divisors is an integer number (3380736).

Almost surely, 2^63704432 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 63704432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67614720).

63704432 is an abundant number, since it is smaller than the sum of its proper divisors (71525008).

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

63704432 is a wasteful number, since it uses less digits than its factorization.

63704432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581 (or 1575 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 29.

The square root of 63704432 is about 7981.5056223748. The cubic root of 63704432 is about 399.3832829723.

The spelling of 63704432 in words is "sixty-three million, seven hundred four thousand, four hundred thirty-two".