85305671 has 8 divisors (see below), whose sum is σ = 93129600. Its totient is φ = 77493240.

The previous prime is 85305667. The next prime is 85305697. The reversal of 85305671 is 17650358.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85305671 - 2² = 85305667 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 (85305601) 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 in 7 ways as a sum of consecutive naturals, for example, 22190 + ... + 25748.

It is an arithmetic number, because the mean of its divisors is an integer number (11641200).

Almost surely, 2^85305671 is an apocalyptic number.

85305671 is a deficient number, since it is larger than the sum of its proper divisors (7823929).

85305671 is a wasteful number, since it uses less digits than its factorization.

85305671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5749.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 85305671 is about 9236.1069179606. The cubic root of 85305671 is about 440.2093889757.

The spelling of 85305671 in words is "eighty-five million, three hundred five thousand, six hundred seventy-one".