85066871 has 2 divisors, whose sum is σ = 85066872. Its totient is φ = 85066870.

The previous prime is 85066867. The next prime is 85066921. The reversal of 85066871 is 17866058.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85066871 - 2² = 85066867 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 (85066271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42533435 + 42533436.

It is an arithmetic number, because the mean of its divisors is an integer number (42533436).

Almost surely, 2^85066871 is an apocalyptic number.

85066871 is a deficient number, since it is larger than the sum of its proper divisors (1).

85066871 is an equidigital number, since it uses as much as digits as its factorization.

85066871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 85066871 is about 9223.1703334591. The cubic root of 85066871 is about 439.7982391088.

The spelling of 85066871 in words is "eighty-five million, sixty-six thousand, eight hundred seventy-one".