890832 has 40 divisors (see below), whose sum is σ = 2344096. Its totient is φ = 291456.

The previous prime is 890821. The next prime is 890833. The reversal of 890832 is 238098.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 890832.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (890833) by changing a digit.

890832 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 7 ways as a sum of consecutive naturals, for example, 3078 + ... + 3354.

2⁸⁹⁰⁸³² 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 890832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1172048).

890832 is an abundant number, since it is smaller than the sum of its proper divisors (1453264).

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

890832 is a wasteful number, since it uses less digits than its factorization.

890832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355 (or 349 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 890832 is about 943.8389693163. The cubic root of 890832 is about 96.2199816435.

The spelling of 890832 in words is "eight hundred ninety thousand, eight hundred thirty-two".