543632 has 20 divisors (see below), whose sum is σ = 1072476. Its totient is φ = 266880.

The previous prime is 543617. The next prime is 543637. The reversal of 543632 is 236345.

It can be written as a sum of positive squares in 2 ways, for example, as 30976 + 512656 = 176^2 + 716^2 .

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 543598 and 543607.

It is not an unprimeable number, because it can be changed into a prime (543637) by changing a digit.

543632 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 3 ways as a sum of consecutive naturals, for example, 698 + ... + 1254.

2⁵⁴³⁶³² is an apocalyptic number.

It is an amenable number.

543632 is a deficient number, since it is larger than the sum of its proper divisors (528844).

543632 is a wasteful number, since it uses less digits than its factorization.

543632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626 (or 620 counting only the distinct ones).

The product of its digits is 2160, while the sum is 23.

The square root of 543632 is about 737.3140443529. The cubic root of 543632 is about 81.6146904219.

Adding to 543632 its reverse (236345), we get a palindrome (779977).

The spelling of 543632 in words is "five hundred forty-three thousand, six hundred thirty-two".