543969728 has 56 divisors (see below), whose sum is σ = 1109301312. Its totient is φ = 264536064.

The previous prime is 543969721. The next prime is 543969731. The reversal of 543969728 is 827969345.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 543969728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (543969721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 580076 + ... + 581012.

It is an arithmetic number, because the mean of its divisors is an integer number (19808952).

Almost surely, 2^543969728 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 543969728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (554650656).

543969728 is an abundant number, since it is smaller than the sum of its proper divisors (565331584).

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

543969728 is a wasteful number, since it uses less digits than its factorization.

543969728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189 (or 1179 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 53.

The square root of 543969728 is about 23323.1586197067. The cubic root of 543969728 is about 816.3158779625.

The spelling of 543969728 in words is "five hundred forty-three million, nine hundred sixty-nine thousand, seven hundred twenty-eight".