85851671 has 8 divisors (see below), whose sum is σ = 90750000. Its totient is φ = 80991360.

The previous prime is 85851653. The next prime is 85851673. The reversal of 85851671 is 17615858.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85851671 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 (85851673) 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 7 ways as a sum of consecutive naturals, for example, 4796 + ... + 13953.

It is an arithmetic number, because the mean of its divisors is an integer number (11343750).

Almost surely, 2^85851671 is an apocalyptic number.

85851671 is a deficient number, since it is larger than the sum of its proper divisors (4898329).

85851671 is a wasteful number, since it uses less digits than its factorization.

85851671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19009.

The product of its digits is 67200, while the sum is 41.

The square root of 85851671 is about 9265.6176804356. The cubic root of 85851671 is about 441.1465808501.

The spelling of 85851671 in words is "eighty-five million, eight hundred fifty-one thousand, six hundred seventy-one".