63664288 has 24 divisors (see below), whose sum is σ = 131937120. Its totient is φ = 30156480.

The previous prime is 63664261. The next prime is 63664291. The reversal of 63664288 is 88246636.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51748 + ... + 52963.

It is an arithmetic number, because the mean of its divisors is an integer number (5497380).

Almost surely, 2^63664288 is an apocalyptic number.

It is an amenable number.

63664288 is an abundant number, since it is smaller than the sum of its proper divisors (68272832).

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

63664288 is a wasteful number, since it uses less digits than its factorization.

63664288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104740 (or 104732 counting only the distinct ones).

The product of its digits is 331776, while the sum is 43.

The square root of 63664288 is about 7978.9904123266. The cubic root of 63664288 is about 399.2993735229.

The spelling of 63664288 in words is "sixty-three million, six hundred sixty-four thousand, two hundred eighty-eight".