65328589 has 2 divisors, whose sum is σ = 65328590. Its totient is φ = 65328588.

The previous prime is 65328583. The next prime is 65328611. The reversal of 65328589 is 98582356.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59028489 + 6300100 = 7683^2 + 2510^2 .

It is a cyclic number.

It is not a de Polignac number, because 65328589 - 2¹⁹ = 64804301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65328583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32664294 + 32664295.

It is an arithmetic number, because the mean of its divisors is an integer number (32664295).

Almost surely, 2^65328589 is an apocalyptic number.

It is an amenable number.

65328589 is a deficient number, since it is larger than the sum of its proper divisors (1).

65328589 is an equidigital number, since it uses as much as digits as its factorization.

65328589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 518400, while the sum is 46.

The square root of 65328589 is about 8082.6102838130. The cubic root of 65328589 is about 402.7489585398.

The spelling of 65328589 in words is "sixty-five million, three hundred twenty-eight thousand, five hundred eighty-nine".