85785238 has 32 divisors (see below), whose sum is σ = 161088768. Its totient is φ = 33285600.

The previous prime is 85785223. The next prime is 85785251. The reversal of 85785238 is 83258758.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41653 + ... + 43663.

It is an arithmetic number, because the mean of its divisors is an integer number (5034024).

Almost surely, 2^85785238 is an apocalyptic number.

85785238 is a deficient number, since it is larger than the sum of its proper divisors (75303530).

85785238 is a wasteful number, since it uses less digits than its factorization.

85785238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2308.

The product of its digits is 537600, while the sum is 46.

The square root of 85785238 is about 9262.0320664528. The cubic root of 85785238 is about 441.0327634059.

The spelling of 85785238 in words is "eighty-five million, seven hundred eighty-five thousand, two hundred thirty-eight".