64463717 has 8 divisors (see below), whose sum is σ = 64968600. Its totient is φ = 63961344.

The previous prime is 64463701. The next prime is 64463747. The reversal of 64463717 is 71736446.

It can be written as a sum of positive squares in 4 ways, for example, as 4726276 + 59737441 = 2174^2 + 7729^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64463717 - 2⁴ = 64463701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64463747) 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, 113009 + ... + 113577.

It is an arithmetic number, because the mean of its divisors is an integer number (8121075).

Almost surely, 2^64463717 is an apocalyptic number.

It is an amenable number.

64463717 is a deficient number, since it is larger than the sum of its proper divisors (504883).

64463717 is a wasteful number, since it uses less digits than its factorization.

64463717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255.

The product of its digits is 84672, while the sum is 38.

The square root of 64463717 is about 8028.9300034313. The cubic root of 64463717 is about 400.9637531680.

The spelling of 64463717 in words is "sixty-four million, four hundred sixty-three thousand, seven hundred seventeen".