64085717 has 4 divisors (see below), whose sum is σ = 64104576. Its totient is φ = 64066860.

The previous prime is 64085713. The next prime is 64085719. The reversal of 64085717 is 71758046.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64085717 - 2² = 64085713 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 (64085713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2759 + ... + 11652.

It is an arithmetic number, because the mean of its divisors is an integer number (16026144).

Almost surely, 2^64085717 is an apocalyptic number.

It is an amenable number.

64085717 is a deficient number, since it is larger than the sum of its proper divisors (18859).

64085717 is a wasteful number, since it uses less digits than its factorization.

64085717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18858.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 64085717 is about 8005.3555199004. The cubic root of 64085717 is about 400.1784974182.

The spelling of 64085717 in words is "sixty-four million, eighty-five thousand, seven hundred seventeen".