831689852 has 12 divisors (see below), whose sum is σ = 1663379760. Its totient is φ = 356438496.

The previous prime is 831689843. The next prime is 831689857. The reversal of 831689852 is 258986138.

831689852 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 831689852.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (831689857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14851577 + ... + 14851632.

It is an arithmetic number, because the mean of its divisors is an integer number (138614980).

Almost surely, 2^831689852 is an apocalyptic number.

It is an amenable number.

831689852 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.

831689852 is a wasteful number, since it uses less digits than its factorization.

831689852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29703220 (or 29703218 counting only the distinct ones).

The product of its digits is 829440, while the sum is 50.

The square root of 831689852 is about 28839.0334789500. The cubic root of 831689852 is about 940.4169916931.

The spelling of 831689852 in words is "eight hundred thirty-one million, six hundred eighty-nine thousand, eight hundred fifty-two".