489517271 has 2 divisors, whose sum is σ = 489517272. Its totient is φ = 489517270.

The previous prime is 489517229. The next prime is 489517291. The reversal of 489517271 is 172715984.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 489517271 - 2²⁶ = 422408407 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (489517291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244758635 + 244758636.

It is an arithmetic number, because the mean of its divisors is an integer number (244758636).

Almost surely, 2^489517271 is an apocalyptic number.

489517271 is a deficient number, since it is larger than the sum of its proper divisors (1).

489517271 is an equidigital number, since it uses as much as digits as its factorization.

489517271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120, while the sum is 44.

The square root of 489517271 is about 22125.0371977088. The cubic root of 489517271 is about 788.1145395744.

The spelling of 489517271 in words is "four hundred eighty-nine million, five hundred seventeen thousand, two hundred seventy-one".