85784286 has 16 divisors (see below), whose sum is σ = 196078464. Its totient is φ = 24509784.

The previous prime is 85784243. The next prime is 85784327. The reversal of 85784286 is 68248758.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1021200 + ... + 1021283.

It is an arithmetic number, because the mean of its divisors is an integer number (12254904).

Almost surely, 2^85784286 is an apocalyptic number.

85784286 is an abundant number, since it is smaller than the sum of its proper divisors (110294178).

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

85784286 is a wasteful number, since it uses less digits than its factorization.

85784286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2042495.

The product of its digits is 860160, while the sum is 48.

The square root of 85784286 is about 9261.9806737004. The cubic root of 85784286 is about 441.0311319490.

The spelling of 85784286 in words is "eighty-five million, seven hundred eighty-four thousand, two hundred eighty-six".