65806073 has 2 divisors, whose sum is σ = 65806074. Its totient is φ = 65806072.

The previous prime is 65806067. The next prime is 65806109. The reversal of 65806073 is 37060856.

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., 53993104 + 11812969 = 7348^2 + 3437^2 .

It is a cyclic number.

It is not a de Polignac number, because 65806073 - 2⁴ = 65806057 is a prime.

It is not a weakly prime, because it can be changed into another prime (65806033) 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, 32903036 + 32903037.

It is an arithmetic number, because the mean of its divisors is an integer number (32903037).

Almost surely, 2^65806073 is an apocalyptic number.

It is an amenable number.

65806073 is a deficient number, since it is larger than the sum of its proper divisors (1).

65806073 is an equidigital number, since it uses as much as digits as its factorization.

65806073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 65806073 is about 8112.0942425492. The cubic root of 65806073 is about 403.7278028738.

The spelling of 65806073 in words is "sixty-five million, eight hundred six thousand, seventy-three".