885990 has 32 divisors (see below), whose sum is σ = 2430720. Its totient is φ = 202464.

The previous prime is 885977. The next prime is 885991. The reversal of 885990 is 99588.

885990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (885991) by changing a digit.

885990 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1900 + ... + 2319.

It is an arithmetic number, because the mean of its divisors is an integer number (75960).

2⁸⁸⁵⁹⁹⁰ is an apocalyptic number.

885990 is an abundant number, since it is smaller than the sum of its proper divisors (1544730).

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

885990 is a wasteful number, since it uses less digits than its factorization.

885990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4236.

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 885990 is about 941.2704181052. The cubic root of 885990 is about 96.0453344909.

The spelling of 885990 in words is "eight hundred eighty-five thousand, nine hundred ninety".