86305573 has 2 divisors, whose sum is σ = 86305574. Its totient is φ = 86305572.

The previous prime is 86305567. The next prime is 86305577. The reversal of 86305573 is 37550368.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73582084 + 12723489 = 8578^2 + 3567^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86305573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86305577) 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, 43152786 + 43152787.

It is an arithmetic number, because the mean of its divisors is an integer number (43152787).

Almost surely, 2^86305573 is an apocalyptic number.

It is an amenable number.

86305573 is a deficient number, since it is larger than the sum of its proper divisors (1).

86305573 is an equidigital number, since it uses as much as digits as its factorization.

86305573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 86305573 is about 9290.0792784561. The cubic root of 86305573 is about 441.9226692583.

The spelling of 86305573 in words is "eighty-six million, three hundred five thousand, five hundred seventy-three".