489493 has 2 divisors, whose sum is σ = 489494. Its totient is φ = 489492.

The previous prime is 489487. The next prime is 489529. The reversal of 489493 is 394984.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 400689 + 88804 = 633^2 + 298^2 .

It is a cyclic number.

It is not a de Polignac number, because 489493 - 2⁹ = 488981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (489793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244746 + 244747.

It is an arithmetic number, because the mean of its divisors is an integer number (244747).

2⁴⁸⁹⁴⁹³ is an apocalyptic number.

It is an amenable number.

489493 is a deficient number, since it is larger than the sum of its proper divisors (1).

489493 is an equidigital number, since it uses as much as digits as its factorization.

489493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 37.

The square root of 489493 is about 699.6377634176. The cubic root of 489493 is about 78.8101514059.

The spelling of 489493 in words is "four hundred eighty-nine thousand, four hundred ninety-three".