489613 has 2 divisors, whose sum is σ = 489614.
Its totient is φ = 489612.
The previous prime is 489571. The next prime is 489631. The reversal of 489613 is 316984.
Together with next prime (489631) it forms an Ormiston pair, because they use the same digits, order apart.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 459684 + 29929 = 678^2 + 173^2
It is a cyclic number.
It is not a de Polignac number, because 489613 - 29 = 489101 is a prime.
It is a plaindrome in base 16.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (489653) 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, 244806 + 244807.
It is an arithmetic number, because the mean of its divisors is an integer number (244807).
2489613 is an apocalyptic number.
It is an amenable number.
489613 is a deficient number, since it is larger than the sum of its proper divisors (1).
489613 is an equidigital number, since it uses as much as digits as its factorization.
489613 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 5184, while the sum is 31.
The square root of 489613 is about 699.7235168265.
The cubic root of 489613 is about 78.8165910250.
The spelling of 489613 in words is "four hundred eighty-nine thousand, six hundred thirteen".