85791186 has 48 divisors (see below), whose sum is σ = 201179160. Its totient is φ = 26265600.

The previous prime is 85791179. The next prime is 85791191. The reversal of 85791186 is 68119758.

It can be written as a sum of positive squares in 4 ways, for example, as 85655025 + 136161 = 9255^2 + 369^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52786 + ... + 54386.

Almost surely, 2^85791186 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85791186, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100589580).

85791186 is an abundant number, since it is smaller than the sum of its proper divisors (115387974).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85791186 is a wasteful number, since it uses less digits than its factorization.

85791186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1851 (or 1848 counting only the distinct ones).

The product of its digits is 120960, while the sum is 45.

The square root of 85791186 is about 9262.3531567307. The cubic root of 85791186 is about 441.0429563105.

The spelling of 85791186 in words is "eighty-five million, seven hundred ninety-one thousand, one hundred eighty-six".