543684 has 12 divisors (see below), whose sum is σ = 1268624. Its totient is φ = 181224.

The previous prime is 543679. The next prime is 543689. The reversal of 543684 is 486345.

It is an interprime number because it is at equal distance from previous prime (543679) and next prime (543689).

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (543689) by changing a digit.

543684 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 3 ways as a sum of consecutive naturals, for example, 22642 + ... + 22665.

2⁵⁴³⁶⁸⁴ is an apocalyptic number.

It is an amenable number.

543684 is an abundant number, since it is smaller than the sum of its proper divisors (724940).

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

543684 is a wasteful number, since it uses less digits than its factorization.

543684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45314 (or 45312 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 543684 is about 737.3493066383. The cubic root of 543684 is about 81.6172925673.

The spelling of 543684 in words is "five hundred forty-three thousand, six hundred eighty-four".