424889 has 2 divisors, whose sum is σ = 424890. Its totient is φ = 424888.

The previous prime is 424867. The next prime is 424891. The reversal of 424889 is 988424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 369664 + 55225 = 608^2 + 235^2 .

It is a cyclic number.

It is not a de Polignac number, because 424889 - 2¹⁶ = 359353 is a prime.

Together with 424891, it forms a pair of twin primes.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 424889.

It is not a weakly prime, because it can be changed into another prime (424819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212444 + 212445.

It is an arithmetic number, because the mean of its divisors is an integer number (212445).

2⁴²⁴⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

424889 is a deficient number, since it is larger than the sum of its proper divisors (1).

424889 is an equidigital number, since it uses as much as digits as its factorization.

424889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18432, while the sum is 35.

The square root of 424889 is about 651.8351018471. The cubic root of 424889 is about 75.1781837462.

The spelling of 424889 in words is "four hundred twenty-four thousand, eight hundred eighty-nine".