489859247 has 2 divisors, whose sum is σ = 489859248. Its totient is φ = 489859246.

The previous prime is 489859229. The next prime is 489859289. The reversal of 489859247 is 742958984.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 489859247 - 2²⁰ = 488810671 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 489859192 and 489859201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (489859207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244929623 + 244929624.

It is an arithmetic number, because the mean of its divisors is an integer number (244929624).

Almost surely, 2^489859247 is an apocalyptic number.

489859247 is a deficient number, since it is larger than the sum of its proper divisors (1).

489859247 is an equidigital number, since it uses as much as digits as its factorization.

489859247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5806080, while the sum is 56.

The square root of 489859247 is about 22132.7641066361. The cubic root of 489859247 is about 788.2980220491.

The spelling of 489859247 in words is "four hundred eighty-nine million, eight hundred fifty-nine thousand, two hundred forty-seven".