63864068 has 6 divisors (see below), whose sum is σ = 111762126. Its totient is φ = 31932032.

The previous prime is 63864007. The next prime is 63864071. The reversal of 63864068 is 86046836.

It can be written as a sum of positive squares in only one way, i.e., 62220544 + 1643524 = 7888^2 + 1282^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7983005 + ... + 7983012.

It is an arithmetic number, because the mean of its divisors is an integer number (18627021).

Almost surely, 2^63864068 is an apocalyptic number.

It is an amenable number.

63864068 is a deficient number, since it is larger than the sum of its proper divisors (47898058).

63864068 is a wasteful number, since it uses less digits than its factorization.

63864068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15966021 (or 15966019 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 41.

The square root of 63864068 is about 7991.4997340925. The cubic root of 63864068 is about 399.7166076026.

The spelling of 63864068 in words is "sixty-three million, eight hundred sixty-four thousand, sixty-eight".