65812073 has 2 divisors, whose sum is σ = 65812074. Its totient is φ = 65812072.

The previous prime is 65812063. The next prime is 65812091. The reversal of 65812073 is 37021856.

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., 57032704 + 8779369 = 7552^2 + 2963^2 .

It is a cyclic number.

It is not a de Polignac number, because 65812073 - 2⁴ = 65812057 is a prime.

It is not a weakly prime, because it can be changed into another prime (65812003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32906036 + 32906037.

It is an arithmetic number, because the mean of its divisors is an integer number (32906037).

Almost surely, 2^65812073 is an apocalyptic number.

It is an amenable number.

65812073 is a deficient number, since it is larger than the sum of its proper divisors (1).

65812073 is an equidigital number, since it uses as much as digits as its factorization.

65812073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 65812073 is about 8112.4640523086. The cubic root of 65812073 is about 403.7400727302.

The spelling of 65812073 in words is "sixty-five million, eight hundred twelve thousand, seventy-three".