845085 has 16 divisors (see below), whose sum is σ = 1378944. Its totient is φ = 441792.

The previous prime is 845083. The next prime is 845099. The reversal of 845085 is 580548.

It is not a de Polignac number, because 845085 - 2¹ = 845083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845083) 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 15 ways as a sum of consecutive naturals, for example, 264 + ... + 1326.

It is an arithmetic number, because the mean of its divisors is an integer number (86184).

2⁸⁴⁵⁰⁸⁵ is an apocalyptic number.

It is an amenable number.

845085 is a deficient number, since it is larger than the sum of its proper divisors (533859).

845085 is a wasteful number, since it uses less digits than its factorization.

845085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1124.

The product of its (nonzero) digits is 6400, while the sum is 30.

The square root of 845085 is about 919.2850482848. The cubic root of 845085 is about 94.5438893579.

The spelling of 845085 in words is "eight hundred forty-five thousand, eighty-five".