63868684 has 12 divisors (see below), whose sum is σ = 121931208. Its totient is φ = 29031200.

The previous prime is 63868627. The next prime is 63868733. The reversal of 63868684 is 48686836.

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, 725737 + ... + 725824.

It is an arithmetic number, because the mean of its divisors is an integer number (10160934).

Almost surely, 2^63868684 is an apocalyptic number.

It is an amenable number.

63868684 is a deficient number, since it is larger than the sum of its proper divisors (58062524).

63868684 is a wasteful number, since it uses less digits than its factorization.

63868684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1451576 (or 1451574 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 49.

The square root of 63868684 is about 7991.7885357409. The cubic root of 63868684 is about 399.7262376782.

The spelling of 63868684 in words is "sixty-three million, eight hundred sixty-eight thousand, six hundred eighty-four".