85806186 has 16 divisors (see below), whose sum is σ = 177530400. Its totient is φ = 27615728.

The previous prime is 85806173. The next prime is 85806221. The reversal of 85806186 is 68160858.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246396 + ... + 246743.

It is an arithmetic number, because the mean of its divisors is an integer number (11095650).

Almost surely, 2^85806186 is an apocalyptic number.

85806186 is an abundant number, since it is smaller than the sum of its proper divisors (91724214).

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

85806186 is a wasteful number, since it uses less digits than its factorization.

85806186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493173.

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 85806186 is about 9263.1628507762. The cubic root of 85806186 is about 441.0686592571.

The spelling of 85806186 in words is "eighty-five million, eight hundred six thousand, one hundred eighty-six".