63995288 has 16 divisors (see below), whose sum is σ = 137132880. Its totient is φ = 27426528.

The previous prime is 63995279. The next prime is 63995297. The reversal of 63995288 is 88259936.

It is an interprime number because it is at equal distance from previous prime (63995279) and next prime (63995297).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 571331 + ... + 571442.

It is an arithmetic number, because the mean of its divisors is an integer number (8570805).

Almost surely, 2^63995288 is an apocalyptic number.

It is an amenable number.

63995288 is an abundant number, since it is smaller than the sum of its proper divisors (73137592).

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

63995288 is a wasteful number, since it uses less digits than its factorization.

63995288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142786 (or 1142782 counting only the distinct ones).

The product of its digits is 933120, while the sum is 50.

The square root of 63995288 is about 7999.7054945792. The cubic root of 63995288 is about 399.9901830924.

The spelling of 63995288 in words is "sixty-three million, nine hundred ninety-five thousand, two hundred eighty-eight".