881680 has 40 divisors (see below), whose sum is σ = 2089152. Its totient is φ = 345984.

The previous prime is 881669. The next prime is 881681. The reversal of 881680 is 86188.

It is a tau number, because it is divible by the number of its divisors (40).

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (881681) by changing a digit.

881680 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 7 ways as a sum of consecutive naturals, for example, 8187 + ... + 8293.

2⁸⁸¹⁶⁸⁰ is an apocalyptic number.

881680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 881680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1044576).

881680 is an abundant number, since it is smaller than the sum of its proper divisors (1207472).

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

881680 is a wasteful number, since it uses less digits than its factorization.

881680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 31.

The square root of 881680 is about 938.9781680103. The cubic root of 881680 is about 95.8893400831.

The spelling of 881680 in words is "eight hundred eighty-one thousand, six hundred eighty".