63648896 has 16 divisors (see below), whose sum is σ = 126800790. Its totient is φ = 31824384.

The previous prime is 63648869. The next prime is 63648913. The reversal of 63648896 is 69884636.

It can be written as a sum of positive squares in only one way, i.e., 63361600 + 287296 = 7960^2 + 536^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248501 + ... + 248756.

Almost surely, 2^63648896 is an apocalyptic number.

It is an amenable number.

63648896 is a deficient number, since it is larger than the sum of its proper divisors (63151894).

63648896 is an equidigital number, since it uses as much as digits as its factorization.

63648896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497271 (or 497259 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 50.

The square root of 63648896 is about 7978.0258209660. The cubic root of 63648896 is about 399.2671916329.

The spelling of 63648896 in words is "sixty-three million, six hundred forty-eight thousand, eight hundred ninety-six".