489001 has 2 divisors, whose sum is σ = 489002. Its totient is φ = 489000.

The previous prime is 488993. The next prime is 489011. The reversal of 489001 is 100984.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 488601 + 400 = 699^2 + 20^2 .

It is a cyclic number.

It is not a de Polignac number, because 489001 - 2³ = 488993 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (489011) 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, 244500 + 244501.

It is an arithmetic number, because the mean of its divisors is an integer number (244501).

2⁴⁸⁹⁰⁰¹ is an apocalyptic number.

It is an amenable number.

489001 is a deficient number, since it is larger than the sum of its proper divisors (1).

489001 is an equidigital number, since it uses as much as digits as its factorization.

489001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 489001 is about 699.2860644972. The cubic root of 489001 is about 78.7837379585.

Adding to 489001 its reverse (100984), we get a palindrome (589985).

The spelling of 489001 in words is "four hundred eighty-nine thousand, one".