85844742 has 32 divisors (see below), whose sum is σ = 174763008. Its totient is φ = 28106976.

The previous prime is 85844723. The next prime is 85844743. The reversal of 85844742 is 24744858.

It is a junction number, because it is equal to n+sod(n) for n = 85844694 and 85844703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85844743) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 110668 + ... + 111440.

It is an arithmetic number, because the mean of its divisors is an integer number (5461344).

Almost surely, 2^85844742 is an apocalyptic number.

85844742 is an abundant number, since it is smaller than the sum of its proper divisors (88918266).

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

85844742 is a wasteful number, since it uses less digits than its factorization.

85844742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084.

The product of its digits is 286720, while the sum is 42.

The square root of 85844742 is about 9265.2437636578. The cubic root of 85844742 is about 441.1347123687.

The spelling of 85844742 in words is "eighty-five million, eight hundred forty-four thousand, seven hundred forty-two".