730589 has 2 divisors, whose sum is σ = 730590. Its totient is φ = 730588.

The previous prime is 730573. The next prime is 730591. The reversal of 730589 is 985037.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 574564 + 156025 = 758^2 + 395^2 .

It is a cyclic number.

It is not a de Polignac number, because 730589 - 2⁴ = 730573 is a prime.

It is a Sophie Germain prime.

Together with 730591, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (730559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365294 + 365295.

It is an arithmetic number, because the mean of its divisors is an integer number (365295).

2⁷³⁰⁵⁸⁹ is an apocalyptic number.

It is an amenable number.

730589 is a deficient number, since it is larger than the sum of its proper divisors (1).

730589 is an equidigital number, since it uses as much as digits as its factorization.

730589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 730589 is about 854.7449912108. The cubic root of 730589 is about 90.0653434931.

The spelling of 730589 in words is "seven hundred thirty thousand, five hundred eighty-nine".