63995756 has 24 divisors (see below), whose sum is σ = 122937024. Its totient is φ = 28907280.

The previous prime is 63995747. The next prime is 63995759. The reversal of 63995756 is 65759936.

It is not an unprimeable number, because it can be changed into a prime (63995759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2711 + ... + 11633.

It is an arithmetic number, because the mean of its divisors is an integer number (5122376).

Almost surely, 2^63995756 is an apocalyptic number.

It is an amenable number.

63995756 is a deficient number, since it is larger than the sum of its proper divisors (58941268).

63995756 is a wasteful number, since it uses less digits than its factorization.

63995756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9101 (or 9099 counting only the distinct ones).

The product of its digits is 1530900, while the sum is 50.

The square root of 63995756 is about 7999.7347456025. The cubic root of 63995756 is about 399.9911581379.

The spelling of 63995756 in words is "sixty-three million, nine hundred ninety-five thousand, seven hundred fifty-six".