424549 has 2 divisors, whose sum is σ = 424550. Its totient is φ = 424548.

The previous prime is 424547. The next prime is 424559. The reversal of 424549 is 945424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 351649 + 72900 = 593^2 + 270^2 .

It is a cyclic number.

It is not a de Polignac number, because 424549 - 2¹ = 424547 is a prime.

Together with 424547, it forms a pair of twin primes.

424549 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424547) 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 as a sum of consecutive naturals, namely, 212274 + 212275.

It is an arithmetic number, because the mean of its divisors is an integer number (212275).

2⁴²⁴⁵⁴⁹ is an apocalyptic number.

It is an amenable number.

424549 is a deficient number, since it is larger than the sum of its proper divisors (1).

424549 is an equidigital number, since it uses as much as digits as its factorization.

424549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 28.

The square root of 424549 is about 651.5742474960. The cubic root of 424549 is about 75.1581256420.

The spelling of 424549 in words is "four hundred twenty-four thousand, five hundred forty-nine".