64042717 has 8 divisors (see below), whose sum is σ = 66197376. Its totient is φ = 61921152.

The previous prime is 64042703. The next prime is 64042729. The reversal of 64042717 is 71724046.

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 64042717 - 2¹⁵ = 64009949 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 (64012717) 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, 4308 + ... + 12109.

It is an arithmetic number, because the mean of its divisors is an integer number (8274672).

Almost surely, 2^64042717 is an apocalyptic number.

It is an amenable number.

64042717 is a deficient number, since it is larger than the sum of its proper divisors (2154659).

64042717 is a wasteful number, since it uses less digits than its factorization.

64042717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16547.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 64042717 is about 8002.6693671549. The cubic root of 64042717 is about 400.0889739576.

The spelling of 64042717 in words is "sixty-four million, forty-two thousand, seven hundred seventeen".