881816 has 32 divisors (see below), whose sum is σ = 1822800. Its totient is φ = 397440.

The previous prime is 881813. The next prime is 881833. The reversal of 881816 is 618188.

It is a happy number.

881816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (881813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6275 + ... + 6413.

2⁸⁸¹⁸¹⁶ 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 881816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (911400).

881816 is an abundant number, since it is smaller than the sum of its proper divisors (940984).

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

881816 is a wasteful number, since it uses less digits than its factorization.

881816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 215 counting only the distinct ones).

The product of its digits is 3072, while the sum is 32.

The square root of 881816 is about 939.0505843670. The cubic root of 881816 is about 95.8942701710.

The spelling of 881816 in words is "eight hundred eighty-one thousand, eight hundred sixteen".