65044589 has 2 divisors, whose sum is σ = 65044590. Its totient is φ = 65044588.

The previous prime is 65044583. The next prime is 65044613. The reversal of 65044589 is 98544056.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52562500 + 12482089 = 7250^2 + 3533^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65044589 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65044583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32522294 + 32522295.

It is an arithmetic number, because the mean of its divisors is an integer number (32522295).

Almost surely, 2^65044589 is an apocalyptic number.

It is an amenable number.

65044589 is a deficient number, since it is larger than the sum of its proper divisors (1).

65044589 is an equidigital number, since it uses as much as digits as its factorization.

65044589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172800, while the sum is 41.

The square root of 65044589 is about 8065.0225666144. The cubic root of 65044589 is about 402.1644933779.

The spelling of 65044589 in words is "sixty-five million, forty-four thousand, five hundred eighty-nine".