85381834 has 16 divisors (see below), whose sum is σ = 130802688. Its totient is φ = 41784912.

The previous prime is 85381823. The next prime is 85381847. The reversal of 85381834 is 43818358.

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, 63679 + ... + 65005.

It is an arithmetic number, because the mean of its divisors is an integer number (8175168).

Almost surely, 2^85381834 is an apocalyptic number.

85381834 is a deficient number, since it is larger than the sum of its proper divisors (45420854).

85381834 is a wasteful number, since it uses less digits than its factorization.

85381834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1989.

The product of its digits is 92160, while the sum is 40.

The square root of 85381834 is about 9240.2291097137. The cubic root of 85381834 is about 440.3403599265.

The spelling of 85381834 in words is "eighty-five million, three hundred eighty-one thousand, eight hundred thirty-four".