886890 has 64 divisors (see below), whose sum is σ = 2363904. Its totient is φ = 211968.

The previous prime is 886867. The next prime is 886891. The reversal of 886890 is 98688.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (886891) by changing a digit.

886890 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 31 ways as a sum of consecutive naturals, for example, 18847 + ... + 18893.

It is an arithmetic number, because the mean of its divisors is an integer number (36936).

2⁸⁸⁶⁸⁹⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 886890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1181952).

886890 is an abundant number, since it is smaller than the sum of its proper divisors (1477014).

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

886890 is a wasteful number, since it uses less digits than its factorization.

886890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111.

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 886890 is about 941.7483740363. The cubic root of 886890 is about 96.0778448459.

The spelling of 886890 in words is "eight hundred eighty-six thousand, eight hundred ninety".