716589 has 6 divisors (see below), whose sum is σ = 1035086. Its totient is φ = 477720.

The previous prime is 716581. The next prime is 716591. The reversal of 716589 is 985617.

716589 is a `hidden beast` number, since 71 + 6 + 589 = 666.

It can be written as a sum of positive squares in only one way, i.e., 514089 + 202500 = 717^2 + 450^2 .

It is not a de Polignac number, because 716589 - 2³ = 716581 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 (716581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39802 + ... + 39819.

2⁷¹⁶⁵⁸⁹ is an apocalyptic number.

It is an amenable number.

716589 is a deficient number, since it is larger than the sum of its proper divisors (318497).

716589 is a wasteful number, since it uses less digits than its factorization.

716589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79627 (or 79624 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 716589 is about 846.5158002069. The cubic root of 716589 is about 89.4863331295.

The spelling of 716589 in words is "seven hundred sixteen thousand, five hundred eighty-nine".