489793 has 2 divisors, whose sum is σ = 489794. Its totient is φ = 489792.

The previous prime is 489791. The next prime is 489799. The reversal of 489793 is 397984.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 452929 + 36864 = 673^2 + 192^2 .

It is a cyclic number.

It is not a de Polignac number, because 489793 - 2¹ = 489791 is a prime.

Together with 489791, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (489791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244896 + 244897.

It is an arithmetic number, because the mean of its divisors is an integer number (244897).

2⁴⁸⁹⁷⁹³ is an apocalyptic number.

It is an amenable number.

489793 is a deficient number, since it is larger than the sum of its proper divisors (1).

489793 is an equidigital number, since it uses as much as digits as its factorization.

489793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 40.

The square root of 489793 is about 699.8521272383. The cubic root of 489793 is about 78.8262484812.

Subtracting from 489793 its reverse (397984), we obtain a square (91809 = 303²).

The spelling of 489793 in words is "four hundred eighty-nine thousand, seven hundred ninety-three".