9720589 has 2 divisors, whose sum is σ = 9720590. Its totient is φ = 9720588.

The previous prime is 9720551. The next prime is 9720619. The reversal of 9720589 is 9850279.

9720589 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9715689 + 4900 = 3117^2 + 70^2 .

It is a cyclic number.

It is not a de Polignac number, because 9720589 - 2¹³ = 9712397 is a prime.

It is a Chen prime.

9720589 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9720089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4860294 + 4860295.

It is an arithmetic number, because the mean of its divisors is an integer number (4860295).

Almost surely, 2^9720589 is an apocalyptic number.

It is an amenable number.

9720589 is a deficient number, since it is larger than the sum of its proper divisors (1).

9720589 is an equidigital number, since it uses as much as digits as its factorization.

9720589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 9720589 is about 3117.7859131121. The cubic root of 9720589 is about 213.4179089028.

The spelling of 9720589 in words is "nine million, seven hundred twenty thousand, five hundred eighty-nine".