831049728 has 52 divisors (see below), whose sum is σ = 2215894848. Its totient is φ = 277012480.

The previous prime is 831049727. The next prime is 831049753. The reversal of 831049728 is 827940138.

It is a self number, because there is not a number n which added to its sum of digits gives 831049728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (831049727) 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, 21528 + ... + 46103.

Almost surely, 2^831049728 is an apocalyptic number.

It is an amenable number.

831049728 is an abundant number, since it is smaller than the sum of its proper divisors (1384845120).

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

831049728 is an equidigital number, since it uses as much as digits as its factorization.

831049728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67658 (or 67636 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 831049728 is about 28827.9331204996. The cubic root of 831049728 is about 940.1756605473.

The spelling of 831049728 in words is "eight hundred thirty-one million, forty-nine thousand, seven hundred twenty-eight".