706589 has 12 divisors (see below), whose sum is σ = 792756. Its totient is φ = 628992.

The previous prime is 706561. The next prime is 706597. The reversal of 706589 is 985607.

It can be written as a sum of positive squares in 6 ways, for example, as 156025 + 550564 = 395^2 + 742^2 .

It is a de Polignac number, because none of the positive numbers 2^k-706589 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 706589.

It is not an unprimeable number, because it can be changed into a prime (702589) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6197 + ... + 6309.

It is an arithmetic number, because the mean of its divisors is an integer number (66063).

2⁷⁰⁶⁵⁸⁹ is an apocalyptic number.

It is an amenable number.

706589 is a deficient number, since it is larger than the sum of its proper divisors (86167).

706589 is a wasteful number, since it uses less digits than its factorization.

706589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 706589 is about 840.5884843370. The cubic root of 706589 is about 89.0681210569.

The spelling of 706589 in words is "seven hundred six thousand, five hundred eighty-nine".