881685 has 40 divisors (see below), whose sum is σ = 1812096. Its totient is φ = 401760.

The previous prime is 881681. The next prime is 881707. The reversal of 881685 is 586188.

881685 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 881685 - 2² = 881681 is a prime.

It is a congruent number.

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

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2680 + ... + 2990.

2⁸⁸¹⁶⁸⁵ is an apocalyptic number.

It is an amenable number.

881685 is an abundant number, since it is smaller than the sum of its proper divisors (930411).

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

881685 is a wasteful number, since it uses less digits than its factorization.

881685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335 (or 326 counting only the distinct ones).

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

The square root of 881685 is about 938.9808304753. The cubic root of 881685 is about 95.8895213453.

Adding to 881685 its sum of digits (36), we get a square (881721 = 939²).

The spelling of 881685 in words is "eight hundred eighty-one thousand, six hundred eighty-five".