63866288 has 20 divisors (see below), whose sum is σ = 123864840. Its totient is φ = 31901184.

The previous prime is 63866269. The next prime is 63866303. The reversal of 63866288 is 88266836.

It is a happy number.

63866288 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30656 + ... + 32672.

It is an arithmetic number, because the mean of its divisors is an integer number (6193242).

Almost surely, 2^63866288 is an apocalyptic number.

It is an amenable number.

63866288 is a deficient number, since it is larger than the sum of its proper divisors (59998552).

63866288 is a wasteful number, since it uses less digits than its factorization.

63866288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4004 (or 3998 counting only the distinct ones).

The product of its digits is 663552, while the sum is 47.

The square root of 63866288 is about 7991.6386304687. The cubic root of 63866288 is about 399.7212391094.

The spelling of 63866288 in words is "sixty-three million, eight hundred sixty-six thousand, two hundred eighty-eight".