543688 has 8 divisors (see below), whose sum is σ = 1019430. Its totient is φ = 271840.

The previous prime is 543679. The next prime is 543689. The reversal of 543688 is 886345.

It can be written as a sum of positive squares in only one way, i.e., 311364 + 232324 = 558^2 + 482^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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

543688 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 as a sum of consecutive naturals, namely, 33973 + ... + 33988.

2⁵⁴³⁶⁸⁸ is an apocalyptic number.

It is an amenable number.

543688 is a deficient number, since it is larger than the sum of its proper divisors (475742).

543688 is a wasteful number, since it uses less digits than its factorization.

543688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67967 (or 67963 counting only the distinct ones).

The product of its digits is 23040, while the sum is 34.

The square root of 543688 is about 737.3520190520. The cubic root of 543688 is about 81.6174927255.

The spelling of 543688 in words is "five hundred forty-three thousand, six hundred eighty-eight".