543536 has 40 divisors (see below), whose sum is σ = 1261824. Its totient is φ = 221760.

The previous prime is 543509. The next prime is 543539. The reversal of 543536 is 635345.

It is a plaindrome in base 12.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 543536.

It is not an unprimeable number, because it can be changed into a prime (543539) by changing a digit.

543536 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 (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2471 + ... + 2681.

2⁵⁴³⁵³⁶ is an apocalyptic number.

543536 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 543536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (630912).

543536 is an abundant number, since it is smaller than the sum of its proper divisors (718288).

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

543536 is a wasteful number, since it uses less digits than its factorization.

543536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249 (or 243 counting only the distinct ones).

The product of its digits is 5400, while the sum is 26.

The square root of 543536 is about 737.2489403180. The cubic root of 543536 is about 81.6098860251.

Subtracting 543536 from its reverse (635345), we obtain a square (91809 = 303²).

The spelling of 543536 in words is "five hundred forty-three thousand, five hundred thirty-six".