85305786 has 16 divisors (see below), whose sum is σ = 171107424. Its totient is φ = 28352624.

The previous prime is 85305761. The next prime is 85305809. The reversal of 85305786 is 68750358.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18405 + ... + 22568.

It is an arithmetic number, because the mean of its divisors is an integer number (10694214).

Almost surely, 2^85305786 is an apocalyptic number.

85305786 is an abundant number, since it is smaller than the sum of its proper divisors (85801638).

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

85305786 is a wasteful number, since it uses less digits than its factorization.

85305786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41325.

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 85305786 is about 9236.1131435253. The cubic root of 85305786 is about 440.2095867900.

The spelling of 85305786 in words is "eighty-five million, three hundred five thousand, seven hundred eighty-six".