543720 has 64 divisors (see below), whose sum is σ = 1710720. Its totient is φ = 137984.

The previous prime is 543713. The next prime is 543769. The reversal of 543720 is 27345.

It is a happy number.

It is an unprimeable number.

543720 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2662 + ... + 2858.

It is an arithmetic number, because the mean of its divisors is an integer number (26730).

2⁵⁴³⁷²⁰ 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 543720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (855360).

543720 is an abundant number, since it is smaller than the sum of its proper divisors (1167000).

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

543720 is a wasteful number, since it uses less digits than its factorization.

543720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234 (or 230 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 543720 is about 737.3737180019. The cubic root of 543720 is about 81.6190939555.

The spelling of 543720 in words is "five hundred forty-three thousand, seven hundred twenty".