63995768 has 16 divisors (see below), whose sum is σ = 120080880. Its totient is φ = 31974208.

The previous prime is 63995761. The next prime is 63995773. The reversal of 63995768 is 86759936.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63995761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14780 + ... + 18612.

It is an arithmetic number, because the mean of its divisors is an integer number (7505055).

Almost surely, 2^63995768 is an apocalyptic number.

It is an amenable number.

63995768 is a deficient number, since it is larger than the sum of its proper divisors (56085112).

63995768 is a wasteful number, since it uses less digits than its factorization.

63995768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5926 (or 5922 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 53.

The square root of 63995768 is about 7999.7354956273. The cubic root of 63995768 is about 399.9911831390.

It can be divided in two parts, 6399 and 5768, that added together give a cube (12167 = 23³).

The spelling of 63995768 in words is "sixty-three million, nine hundred ninety-five thousand, seven hundred sixty-eight".