831470628 has 48 divisors (see below), whose sum is σ = 2055818240. Its totient is φ = 260820000.

The previous prime is 831470599. The next prime is 831470641. The reversal of 831470628 is 826074138.

It is a super-3 number, since 3×831470628³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22353 + ... + 46503.

Almost surely, 2^831470628 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 831470628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1027909120).

831470628 is an abundant number, since it is smaller than the sum of its proper divisors (1224347612).

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

831470628 is a wasteful number, since it uses less digits than its factorization.

831470628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24328 (or 24326 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 831470628 is about 28835.2324075947. The cubic root of 831470628 is about 940.3343566857.

The spelling of 831470628 in words is "eight hundred thirty-one million, four hundred seventy thousand, six hundred twenty-eight".