571116 has 48 divisors (see below), whose sum is σ = 1643264. Its totient is φ = 150336.

The previous prime is 571111. The next prime is 571133. The reversal of 571116 is 611175.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 571092 and 571101.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 571116.

It is not an unprimeable number, because it can be changed into a prime (571111) by changing a digit.

571116 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 15 ways as a sum of consecutive naturals, for example, 831 + ... + 1353.

2⁵⁷¹¹¹⁶ 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 571116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (821632).

571116 is an abundant number, since it is smaller than the sum of its proper divisors (1072148).

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

571116 is a wasteful number, since it uses less digits than its factorization.

571116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550 (or 548 counting only the distinct ones).

The product of its digits is 210, while the sum is 21.

The square root of 571116 is about 755.7221711714. The cubic root of 571116 is about 82.9675200732.

The spelling of 571116 in words is "five hundred seventy-one thousand, one hundred sixteen".