85158671 has 12 divisors (see below), whose sum is σ = 92863512. Its totient is φ = 77630784.

The previous prime is 85158659. The next prime is 85158677. The reversal of 85158671 is 17685158.

It is not a de Polignac number, because 85158671 - 2²⁶ = 18049807 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 (85158677) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102560 + ... + 103386.

It is an arithmetic number, because the mean of its divisors is an integer number (7738626).

Almost surely, 2^85158671 is an apocalyptic number.

85158671 is a deficient number, since it is larger than the sum of its proper divisors (7704841).

85158671 is an equidigital number, since it uses as much as digits as its factorization.

85158671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018 (or 929 counting only the distinct ones).

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

The square root of 85158671 is about 9228.1455883617. The cubic root of 85158671 is about 439.9563851396.

The spelling of 85158671 in words is "eighty-five million, one hundred fifty-eight thousand, six hundred seventy-one".