85945844 has 6 divisors (see below), whose sum is σ = 150405234. Its totient is φ = 42972920.

The previous prime is 85945843. The next prime is 85945861. The reversal of 85945844 is 44854958.

It can be written as a sum of positive squares in only one way, i.e., 46758244 + 39187600 = 6838^2 + 6260^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85945841) by changing a digit.

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 as a sum of consecutive naturals, namely, 10743227 + ... + 10743234.

It is an arithmetic number, because the mean of its divisors is an integer number (25067539).

Almost surely, 2^85945844 is an apocalyptic number.

It is an amenable number.

85945844 is a deficient number, since it is larger than the sum of its proper divisors (64459390).

85945844 is a wasteful number, since it uses less digits than its factorization.

85945844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21486465 (or 21486463 counting only the distinct ones).

The product of its digits is 921600, while the sum is 47.

The square root of 85945844 is about 9270.6981398382. The cubic root of 85945844 is about 441.3078237452.

The spelling of 85945844 in words is "eighty-five million, nine hundred forty-five thousand, eight hundred forty-four".