345589 has 4 divisors (see below), whose sum is σ = 354060. Its totient is φ = 337120.

The previous prime is 345581. The next prime is 345599. The reversal of 345589 is 985543.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34225 + 311364 = 185^2 + 558^2 .

It is a cyclic number.

It is not a de Polignac number, because 345589 - 2³ = 345581 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345581) 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 in 3 ways as a sum of consecutive naturals, for example, 4174 + ... + 4255.

It is an arithmetic number, because the mean of its divisors is an integer number (88515).

2³⁴⁵⁵⁸⁹ is an apocalyptic number.

It is an amenable number.

345589 is a deficient number, since it is larger than the sum of its proper divisors (8471).

345589 is an equidigital number, since it uses as much as digits as its factorization.

345589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8470.

The product of its digits is 21600, while the sum is 34.

The square root of 345589 is about 587.8681825035. The cubic root of 345589 is about 70.1756811677.

The spelling of 345589 in words is "three hundred forty-five thousand, five hundred eighty-nine".