63805868 has 24 divisors (see below), whose sum is σ = 127825152. Its totient is φ = 27299664.

The previous prime is 63805853. The next prime is 63805949. The reversal of 63805868 is 86850836.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19271 + ... + 22337.

It is an arithmetic number, because the mean of its divisors is an integer number (5326048).

Almost surely, 2^63805868 is an apocalyptic number.

It is an amenable number.

63805868 is an abundant number, since it is smaller than the sum of its proper divisors (64019284).

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

63805868 is a wasteful number, since it uses less digits than its factorization.

63805868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3821 (or 3819 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 63805868 is about 7987.8575350340. The cubic root of 63805868 is about 399.5951487102.

The spelling of 63805868 in words is "sixty-three million, eight hundred five thousand, eight hundred sixty-eight".