831066 has 8 divisors (see below), whose sum is σ = 1662144. Its totient is φ = 277020.

The previous prime is 831043. The next prime is 831067. The reversal of 831066 is 660138.

It is a sphenic number, since it is the product of 3 distinct primes.

831066 is an admirable number.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (831067) by changing a digit.

831066 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69250 + ... + 69261.

It is an arithmetic number, because the mean of its divisors is an integer number (207768).

2⁸³¹⁰⁶⁶ is an apocalyptic number.

831066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

831066 is a wasteful number, since it uses less digits than its factorization.

831066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138516.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 831066 is about 911.6282136924. The cubic root of 831066 is about 94.0181796738.

The spelling of 831066 in words is "eight hundred thirty-one thousand, sixty-six".