85091234 has 16 divisors (see below), whose sum is σ = 134534400. Its totient is φ = 40252464.

The previous prime is 85091233. The next prime is 85091243. The reversal of 85091234 is 43219058.

It is a self number, because there is not a number n which added to its sum of digits gives 85091234.

It is not an unprimeable number, because it can be changed into a prime (85091233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53519 + ... + 55085.

It is an arithmetic number, because the mean of its divisors is an integer number (8408400).

Almost surely, 2^85091234 is an apocalyptic number.

85091234 is a deficient number, since it is larger than the sum of its proper divisors (49443166).

85091234 is a wasteful number, since it uses less digits than its factorization.

85091234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3017.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 85091234 is about 9224.4909886671. The cubic root of 85091234 is about 439.8402209114.

The spelling of 85091234 in words is "eighty-five million, ninety-one thousand, two hundred thirty-four".