85886197 has 4 divisors (see below), whose sum is σ = 88847820. Its totient is φ = 82924576.

The previous prime is 85886189. The next prime is 85886219. The reversal of 85886197 is 79168858.

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

It can be written as a sum of positive squares in 2 ways, for example, as 51710481 + 34175716 = 7191^2 + 5846^2 .

It is a cyclic number.

It is not a de Polignac number, because 85886197 - 2³ = 85886189 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 (85886107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1480768 + ... + 1480825.

It is an arithmetic number, because the mean of its divisors is an integer number (22211955).

Almost surely, 2^85886197 is an apocalyptic number.

It is an amenable number.

85886197 is a deficient number, since it is larger than the sum of its proper divisors (2961623).

85886197 is a wasteful number, since it uses less digits than its factorization.

85886197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2961622.

The product of its digits is 967680, while the sum is 52.

The square root of 85886197 is about 9267.4806177299. The cubic root of 85886197 is about 441.2057099091.

The spelling of 85886197 in words is "eighty-five million, eight hundred eighty-six thousand, one hundred ninety-seven".