85710671 has 4 divisors (see below), whose sum is σ = 85730592. Its totient is φ = 85690752.

The previous prime is 85710661. The next prime is 85710679. The reversal of 85710671 is 17601758.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85710671 - 2⁶ = 85710607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85710679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 530 + ... + 13103.

It is an arithmetic number, because the mean of its divisors is an integer number (21432648).

Almost surely, 2^85710671 is an apocalyptic number.

85710671 is a deficient number, since it is larger than the sum of its proper divisors (19921).

85710671 is a wasteful number, since it uses less digits than its factorization.

85710671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19920.

The product of its (nonzero) digits is 11760, while the sum is 35.

The square root of 85710671 is about 9258.0057787841. The cubic root of 85710671 is about 440.9049402354.

The spelling of 85710671 in words is "eighty-five million, seven hundred ten thousand, six hundred seventy-one".