63713568 has 24 divisors (see below), whose sum is σ = 167248368. Its totient is φ = 21237824.

The previous prime is 63713563. The next prime is 63713621. The reversal of 63713568 is 86531736.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (63713561) 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, 331746 + ... + 331937.

It is an arithmetic number, because the mean of its divisors is an integer number (6968682).

Almost surely, 2^63713568 is an apocalyptic number.

It is an amenable number.

63713568 is an abundant number, since it is smaller than the sum of its proper divisors (103534800).

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

63713568 is a wasteful number, since it uses less digits than its factorization.

63713568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663696 (or 663688 counting only the distinct ones).

The product of its digits is 90720, while the sum is 39.

The square root of 63713568 is about 7982.0779249516. The cubic root of 63713568 is about 399.4023742199.

The spelling of 63713568 in words is "sixty-three million, seven hundred thirteen thousand, five hundred sixty-eight".