831684493 has 8 divisors (see below), whose sum is σ = 836700480. Its totient is φ = 826681920.

The previous prime is 831684487. The next prime is 831684551. The reversal of 831684493 is 394486138.

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

It is a cyclic number.

It is not a de Polignac number, because 831684493 - 2⁹ = 831683981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (831684443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138528 + ... + 144406.

It is an arithmetic number, because the mean of its divisors is an integer number (104587560).

Almost surely, 2^831684493 is an apocalyptic number.

It is an amenable number.

831684493 is a deficient number, since it is larger than the sum of its proper divisors (5015987).

831684493 is a wasteful number, since it uses less digits than its factorization.

831684493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6707.

The product of its digits is 497664, while the sum is 46.

The square root of 831684493 is about 28838.9405665326. The cubic root of 831684493 is about 940.4149718274.

The spelling of 831684493 in words is "eight hundred thirty-one million, six hundred eighty-four thousand, four hundred ninety-three".