489859289 has 2 divisors, whose sum is σ = 489859290. Its totient is φ = 489859288.

The previous prime is 489859247. The next prime is 489859297. The reversal of 489859289 is 982958984.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 360696064 + 129163225 = 18992^2 + 11365^2 .

It is a cyclic number.

It is not a de Polignac number, because 489859289 - 2²⁴ = 473082073 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (489859229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244929644 + 244929645.

It is an arithmetic number, because the mean of its divisors is an integer number (244929645).

Almost surely, 2^489859289 is an apocalyptic number.

It is an amenable number.

489859289 is a deficient number, since it is larger than the sum of its proper divisors (1).

489859289 is an equidigital number, since it uses as much as digits as its factorization.

489859289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14929920, while the sum is 62.

The square root of 489859289 is about 22132.7650554557. The cubic root of 489859289 is about 788.2980445784.

The spelling of 489859289 in words is "four hundred eighty-nine million, eight hundred fifty-nine thousand, two hundred eighty-nine".