63717064 has 8 divisors (see below), whose sum is σ = 119469510. Its totient is φ = 31858528.

The previous prime is 63717047. The next prime is 63717079. The reversal of 63717064 is 46071736.

It can be written as a sum of positive squares in only one way, i.e., 61496964 + 2220100 = 7842^2 + 1490^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3982309 + ... + 3982324.

Almost surely, 2^63717064 is an apocalyptic number.

It is an amenable number.

63717064 is a deficient number, since it is larger than the sum of its proper divisors (55752446).

63717064 is a wasteful number, since it uses less digits than its factorization.

63717064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7964639 (or 7964635 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 63717064 is about 7982.2969125434. The cubic root of 63717064 is about 399.4096792320.

The spelling of 63717064 in words is "sixty-three million, seven hundred seventeen thousand, sixty-four".