890868 has 48 divisors (see below), whose sum is σ = 2407104. Its totient is φ = 253440.

The previous prime is 890867. The next prime is 890881. The reversal of 890868 is 868098.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (890861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2046 + ... + 2442.

It is an arithmetic number, because the mean of its divisors is an integer number (50148).

2⁸⁹⁰⁸⁶⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 890868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1203552).

890868 is an abundant number, since it is smaller than the sum of its proper divisors (1516236).

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

890868 is a wasteful number, since it uses less digits than its factorization.

890868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432 (or 430 counting only the distinct ones).

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

The square root of 890868 is about 943.8580401734. The cubic root of 890868 is about 96.2212777625.

The spelling of 890868 in words is "eight hundred ninety thousand, eight hundred sixty-eight".