85186493 has 4 divisors (see below), whose sum is σ = 97356000. Its totient is φ = 73016988.

The previous prime is 85186447. The next prime is 85186537. The reversal of 85186493 is 39468158.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85186493 - 2⁸ = 85186237 is a prime.

It is a super-3 number, since 3×85186493³ (a number of 25 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85186433) 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 3 ways as a sum of consecutive naturals, for example, 6084743 + ... + 6084756.

It is an arithmetic number, because the mean of its divisors is an integer number (24339000).

Almost surely, 2^85186493 is an apocalyptic number.

It is an amenable number.

85186493 is a deficient number, since it is larger than the sum of its proper divisors (12169507).

85186493 is a wasteful number, since it uses less digits than its factorization.

85186493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12169506.

The product of its digits is 207360, while the sum is 44.

The square root of 85186493 is about 9229.6529187180. The cubic root of 85186493 is about 440.0042923135.

The spelling of 85186493 in words is "eighty-five million, one hundred eighty-six thousand, four hundred ninety-three".