213589 has 2 divisors, whose sum is σ = 213590. Its totient is φ = 213588.

The previous prime is 213557. The next prime is 213599. The reversal of 213589 is 985312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 195364 + 18225 = 442^2 + 135^2 .

It is a cyclic number.

It is not a de Polignac number, because 213589 - 2⁵ = 213557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106794 + 106795.

It is an arithmetic number, because the mean of its divisors is an integer number (106795).

2²¹³⁵⁸⁹ is an apocalyptic number.

It is an amenable number.

213589 is a deficient number, since it is larger than the sum of its proper divisors (1).

213589 is an equidigital number, since it uses as much as digits as its factorization.

213589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 28.

The square root of 213589 is about 462.1568997646. The cubic root of 213589 is about 59.7759234628.

The spelling of 213589 in words is "two hundred thirteen thousand, five hundred eighty-nine".