538543 has 8 divisors (see below), whose sum is σ = 578880. Its totient is φ = 499200.

The previous prime is 538529. The next prime is 538553. The reversal of 538543 is 345835.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 538543 - 2⁵ = 538511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1143 + ... + 1543.

It is an arithmetic number, because the mean of its divisors is an integer number (72360).

2⁵³⁸⁵⁴³ is an apocalyptic number.

538543 is a deficient number, since it is larger than the sum of its proper divisors (40337).

538543 is a wasteful number, since it uses less digits than its factorization.

538543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497.

The product of its digits is 7200, while the sum is 28.

The square root of 538543 is about 733.8548902883. The cubic root of 538543 is about 81.3592235204.

It can be divided in two parts, 538 and 543, that added together give a triangular number (1081 = T₄₆).

The spelling of 538543 in words is "five hundred thirty-eight thousand, five hundred forty-three".