65043217 has 2 divisors, whose sum is σ = 65043218. Its totient is φ = 65043216.

The previous prime is 65043197. The next prime is 65043229. The reversal of 65043217 is 71234056.

65043217 is digitally balanced in base 2, 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., 42915601 + 22127616 = 6551^2 + 4704^2 .

It is a cyclic number.

It is not a de Polignac number, because 65043217 - 2⁷ = 65043089 is a prime.

It is not a weakly prime, because it can be changed into another prime (65043257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32521608 + 32521609.

It is an arithmetic number, because the mean of its divisors is an integer number (32521609).

Almost surely, 2^65043217 is an apocalyptic number.

It is an amenable number.

65043217 is a deficient number, since it is larger than the sum of its proper divisors (1).

65043217 is an equidigital number, since it uses as much as digits as its factorization.

65043217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 65043217 is about 8064.9375075074. The cubic root of 65043217 is about 402.1616657096.

The spelling of 65043217 in words is "sixty-five million, forty-three thousand, two hundred seventeen".