831668 has 24 divisors (see below), whose sum is σ = 1585920. Its totient is φ = 380160.

The previous prime is 831661. The next prime is 831679. The reversal of 831668 is 866138.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (831661) by changing a digit.

831668 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, 2180 + ... + 2532.

It is an arithmetic number, because the mean of its divisors is an integer number (66080).

2⁸³¹⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

831668 is a deficient number, since it is larger than the sum of its proper divisors (754252).

831668 is a wasteful number, since it uses less digits than its factorization.

831668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407 (or 405 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 831668 is about 911.9583323815. The cubic root of 831668 is about 94.0408755381.

The spelling of 831668 in words is "eight hundred thirty-one thousand, six hundred sixty-eight".