63868875 has 64 divisors (see below), whose sum is σ = 125798400. Its totient is φ = 28156800.

The previous prime is 63868873. The next prime is 63868901. The reversal of 63868875 is 57886836.

It is not a de Polignac number, because 63868875 - 2¹ = 63868873 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63868873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 75706 + ... + 76544.

It is an arithmetic number, because the mean of its divisors is an integer number (1965600).

Almost surely, 2^63868875 is an apocalyptic number.

63868875 is a deficient number, since it is larger than the sum of its proper divisors (61929525).

63868875 is a wasteful number, since it uses less digits than its factorization.

63868875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893 (or 883 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 51.

The square root of 63868875 is about 7991.8004854976. The cubic root of 63868875 is about 399.7266361397.

The spelling of 63868875 in words is "sixty-three million, eight hundred sixty-eight thousand, eight hundred seventy-five".