85186517 has 8 divisors (see below), whose sum is σ = 92146656. Its totient is φ = 78284592.

The previous prime is 85186447. The next prime is 85186537. The reversal of 85186517 is 71568158.

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

It is a cyclic number.

It is not a de Polignac number, because 85186517 - 2¹² = 85182421 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 (85186537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11483 + ... + 17384.

It is an arithmetic number, because the mean of its divisors is an integer number (11518332).

Almost surely, 2^85186517 is an apocalyptic number.

It is an amenable number.

85186517 is a deficient number, since it is larger than the sum of its proper divisors (6960139).

85186517 is a wasteful number, since it uses less digits than its factorization.

85186517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29107.

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

The square root of 85186517 is about 9229.6542188752. The cubic root of 85186517 is about 440.0043336350.

The spelling of 85186517 in words is "eighty-five million, one hundred eighty-six thousand, five hundred seventeen".