890085 has 32 divisors (see below), whose sum is σ = 1670400. Its totient is φ = 404544.

The previous prime is 890083. The next prime is 890107. The reversal of 890085 is 580098.

It is not a de Polignac number, because 890085 - 2¹ = 890083 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (890083) 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 31 ways as a sum of consecutive naturals, for example, 5059 + ... + 5231.

It is an arithmetic number, because the mean of its divisors is an integer number (52200).

2⁸⁹⁰⁰⁸⁵ is an apocalyptic number.

It is an amenable number.

890085 is a deficient number, since it is larger than the sum of its proper divisors (780315).

890085 is a wasteful number, since it uses less digits than its factorization.

890085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 890085 is about 943.4431620400. The cubic root of 890085 is about 96.1930792923.

The spelling of 890085 in words is "eight hundred ninety thousand, eighty-five".