889589 has 2 divisors, whose sum is σ = 889590. Its totient is φ = 889588.

The previous prime is 889579. The next prime is 889597. The reversal of 889589 is 985988.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 708964 + 180625 = 842^2 + 425^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-889589 is a prime.

It is a Chen prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (889519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 444794 + 444795.

It is an arithmetic number, because the mean of its divisors is an integer number (444795).

2⁸⁸⁹⁵⁸⁹ is an apocalyptic number.

It is an amenable number.

889589 is a deficient number, since it is larger than the sum of its proper divisors (1).

889589 is an equidigital number, since it uses as much as digits as its factorization.

889589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 47.

The square root of 889589 is about 943.1802584872. The cubic root of 889589 is about 96.1752081030.

The spelling of 889589 in words is "eight hundred eighty-nine thousand, five hundred eighty-nine".