881688 has 32 divisors (see below), whose sum is σ = 2334960. Its totient is φ = 276480.

The previous prime is 881681. The next prime is 881707. The reversal of 881688 is 886188.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

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 7 ways as a sum of consecutive naturals, for example, 673 + ... + 1488.

2⁸⁸¹⁶⁸⁸ is an apocalyptic number.

It is an amenable number.

881688 is an abundant number, since it is smaller than the sum of its proper divisors (1453272).

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

881688 is a wasteful number, since it uses less digits than its factorization.

881688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2187 (or 2183 counting only the distinct ones).

The product of its digits is 24576, while the sum is 39.

The square root of 881688 is about 938.9824279506. The cubic root of 881688 is about 95.8896301023.

The spelling of 881688 in words is "eight hundred eighty-one thousand, six hundred eighty-eight".