489389 has 2 divisors, whose sum is σ = 489390. Its totient is φ = 489388.

The previous prime is 489367. The next prime is 489407. The reversal of 489389 is 983984.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 469225 + 20164 = 685^2 + 142^2 .

It is a cyclic number.

It is not a de Polignac number, because 489389 - 2⁸ = 489133 is a prime.

It is an Ulam number.

It is a plaindrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 489389.

It is not a weakly prime, because it can be changed into another prime (489329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244694 + 244695.

It is an arithmetic number, because the mean of its divisors is an integer number (244695).

2⁴⁸⁹³⁸⁹ is an apocalyptic number.

It is an amenable number.

489389 is a deficient number, since it is larger than the sum of its proper divisors (1).

489389 is an equidigital number, since it uses as much as digits as its factorization.

489389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 41.

The square root of 489389 is about 699.5634352938. The cubic root of 489389 is about 78.8045695513.

It can be divided in two parts, 489 and 389, that added together give a palindrome (878).

The spelling of 489389 in words is "four hundred eighty-nine thousand, three hundred eighty-nine".