85216711 has 2 divisors, whose sum is σ = 85216712. Its totient is φ = 85216710.

The previous prime is 85216693. The next prime is 85216717. The reversal of 85216711 is 11761258.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85216711 - 2¹⁷ = 85085639 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85216717) 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, 42608355 + 42608356.

It is an arithmetic number, because the mean of its divisors is an integer number (42608356).

Almost surely, 2^85216711 is an apocalyptic number.

85216711 is a deficient number, since it is larger than the sum of its proper divisors (1).

85216711 is an equidigital number, since it uses as much as digits as its factorization.

85216711 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 31.

The square root of 85216711 is about 9231.2897798737. The cubic root of 85216711 is about 440.0563133847.

Adding to 85216711 its reverse (11761258), we get a palindrome (96977969).

The spelling of 85216711 in words is "eighty-five million, two hundred sixteen thousand, seven hundred eleven".