530989 has 2 divisors, whose sum is σ = 530990. Its totient is φ = 530988.

The previous prime is 530983. The next prime is 531017. The reversal of 530989 is 989035.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 514089 + 16900 = 717^2 + 130^2 .

It is a cyclic number.

It is not a de Polignac number, because 530989 - 2⁷ = 530861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (530983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265494 + 265495.

It is an arithmetic number, because the mean of its divisors is an integer number (265495).

2⁵³⁰⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

530989 is a deficient number, since it is larger than the sum of its proper divisors (1).

530989 is an equidigital number, since it uses as much as digits as its factorization.

530989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 530989 is about 728.6899203365. The cubic root of 530989 is about 80.9770295074.

The spelling of 530989 in words is "five hundred thirty thousand, nine hundred eighty-nine".