64717 has 2 divisors, whose sum is σ = 64718. Its totient is φ = 64716.

The previous prime is 64709. The next prime is 64747. The reversal of 64717 is 71746.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48841 + 15876 = 221^2 + 126^2 .

It is a cyclic number.

It is not a de Polignac number, because 64717 - 2³ = 64709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64691 and 64700.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32358 + 32359.

It is an arithmetic number, because the mean of its divisors is an integer number (32359).

2⁶⁴⁷¹⁷ is an apocalyptic number.

It is an amenable number.

64717 is a deficient number, since it is larger than the sum of its proper divisors (1).

64717 is an equidigital number, since it uses as much as digits as its factorization.

64717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1176, while the sum is 25.

The square root of 64717 is about 254.3953615929. The cubic root of 64717 is about 40.1488206239.

The spelling of 64717 in words is "sixty-four thousand, seven hundred seventeen".