64335589 has 2 divisors, whose sum is σ = 64335590. Its totient is φ = 64335588.

The previous prime is 64335559. The next prime is 64335641. The reversal of 64335589 is 98553346.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56400100 + 7935489 = 7510^2 + 2817^2 .

It is a cyclic number.

It is not a de Polignac number, because 64335589 - 2⁷ = 64335461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64335529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32167794 + 32167795.

It is an arithmetic number, because the mean of its divisors is an integer number (32167795).

Almost surely, 2^64335589 is an apocalyptic number.

It is an amenable number.

64335589 is a deficient number, since it is larger than the sum of its proper divisors (1).

64335589 is an equidigital number, since it uses as much as digits as its factorization.

64335589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388800, while the sum is 43.

The square root of 64335589 is about 8020.9468892394. The cubic root of 64335589 is about 400.6979252925.

The spelling of 64335589 in words is "sixty-four million, three hundred thirty-five thousand, five hundred eighty-nine".