543604 has 12 divisors (see below), whose sum is σ = 977284. Its totient is φ = 264384.

The previous prime is 543601. The next prime is 543607. The reversal of 543604 is 406345.

It is an interprime number because it is at equal distance from previous prime (543601) and next prime (543607).

It can be written as a sum of positive squares in 2 ways, for example, as 252004 + 291600 = 502^2 + 540^2 .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 543604.

It is not an unprimeable number, because it can be changed into a prime (543601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1689 + ... + 1984.

2⁵⁴³⁶⁰⁴ is an apocalyptic number.

It is an amenable number.

543604 is a deficient number, since it is larger than the sum of its proper divisors (433680).

543604 is a wasteful number, since it uses less digits than its factorization.

543604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3714 (or 3712 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 543604 is about 737.2950562699. The cubic root of 543604 is about 81.6132891979.

Adding to 543604 its reverse (406345), we get a palindrome (949949).

The spelling of 543604 in words is "five hundred forty-three thousand, six hundred four".