86216593 has 2 divisors, whose sum is σ = 86216594. Its totient is φ = 86216592.

The previous prime is 86216579. The next prime is 86216597. The reversal of 86216593 is 39561268.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63872064 + 22344529 = 7992^2 + 4727^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86216593 is a prime.

It is not a weakly prime, because it can be changed into another prime (86216597) 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, 43108296 + 43108297.

It is an arithmetic number, because the mean of its divisors is an integer number (43108297).

Almost surely, 2^86216593 is an apocalyptic number.

It is an amenable number.

86216593 is a deficient number, since it is larger than the sum of its proper divisors (1).

86216593 is an equidigital number, since it uses as much as digits as its factorization.

86216593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 40.

The square root of 86216593 is about 9285.2890638903. The cubic root of 86216593 is about 441.7707447298.

The spelling of 86216593 in words is "eighty-six million, two hundred sixteen thousand, five hundred ninety-three".