85855444 has 12 divisors (see below), whose sum is σ = 151706464. Its totient is φ = 42510744.

The previous prime is 85855421. The next prime is 85855447. The reversal of 85855444 is 44455858.

It is a self number, because there is not a number n which added to its sum of digits gives 85855444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85855447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103782 + ... + 104605.

Almost surely, 2^85855444 is an apocalyptic number.

It is an amenable number.

85855444 is a deficient number, since it is larger than the sum of its proper divisors (65851020).

85855444 is a wasteful number, since it uses less digits than its factorization.

85855444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208494 (or 208492 counting only the distinct ones).

The product of its digits is 512000, while the sum is 43.

The square root of 85855444 is about 9265.8212803831. The cubic root of 85855444 is about 441.1530432430.

The spelling of 85855444 in words is "eighty-five million, eight hundred fifty-five thousand, four hundred forty-four".