543923 has 4 divisors (see below), whose sum is σ = 551448. Its totient is φ = 536400.

The previous prime is 543911. The next prime is 543929. The reversal of 543923 is 329345.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 543923 - 2⁶ = 543859 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 543892 and 543901.

It is not an unprimeable number, because it can be changed into a prime (543929) 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, 3653 + ... + 3798.

It is an arithmetic number, because the mean of its divisors is an integer number (137862).

2⁵⁴³⁹²³ is an apocalyptic number.

543923 is a deficient number, since it is larger than the sum of its proper divisors (7525).

543923 is an equidigital number, since it uses as much as digits as its factorization.

543923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7524.

The product of its digits is 3240, while the sum is 26.

The square root of 543923 is about 737.5113558448. The cubic root of 543923 is about 81.6292502948.

The spelling of 543923 in words is "five hundred forty-three thousand, nine hundred twenty-three".