881856 has 42 divisors (see below), whose sum is σ = 2529332. Its totient is φ = 293760.

The previous prime is 881849. The next prime is 881897. The reversal of 881856 is 658188.

It is a Harshad number since it is a multiple of its sum of digits (36).

Its product of digits (15360) is a multiple of the sum of its prime divisors (1536).

It is a self number, because there is not a number n which added to its sum of digits gives 881856.

It is an unprimeable number.

881856 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 5 ways as a sum of consecutive naturals, for example, 190 + ... + 1341.

2⁸⁸¹⁸⁵⁶ 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 881856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1264666).

881856 is an abundant number, since it is smaller than the sum of its proper divisors (1647476).

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

881856 is a wasteful number, since it uses less digits than its factorization.

881856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1549 (or 1536 counting only the distinct ones).

The product of its digits is 15360, while the sum is 36.

The square root of 881856 is about 939.0718822327. The cubic root of 881856 is about 95.8957201004.

The spelling of 881856 in words is "eight hundred eighty-one thousand, eight hundred fifty-six".