548439 has 4 divisors (see below), whose sum is σ = 731256. Its totient is φ = 365624.

The previous prime is 548423. The next prime is 548441. The reversal of 548439 is 934845.

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 548439 - 2⁴ = 548423 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 5 + 4² + 4⁷ + 8³ + 3¹² + 9² .

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (548459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91404 + ... + 91409.

It is an arithmetic number, because the mean of its divisors is an integer number (182814).

2⁵⁴⁸⁴³⁹ is an apocalyptic number.

548439 is a deficient number, since it is larger than the sum of its proper divisors (182817).

548439 is a wasteful number, since it uses less digits than its factorization.

548439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182816.

The product of its digits is 17280, while the sum is 33.

The square root of 548439 is about 740.5666749186. The cubic root of 548439 is about 81.8545408547.

The spelling of 548439 in words is "five hundred forty-eight thousand, four hundred thirty-nine".