489727471 has 2 divisors, whose sum is σ = 489727472. Its totient is φ = 489727470.

The previous prime is 489727463. The next prime is 489727507. The reversal of 489727471 is 174727984.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 489727471 - 2³ = 489727463 is a prime.

It is a super-3 number, since 3×489727471³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (489727571) 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, 244863735 + 244863736.

It is an arithmetic number, because the mean of its divisors is an integer number (244863736).

Almost surely, 2^489727471 is an apocalyptic number.

489727471 is a deficient number, since it is larger than the sum of its proper divisors (1).

489727471 is an equidigital number, since it uses as much as digits as its factorization.

489727471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 790272, while the sum is 49.

The square root of 489727471 is about 22129.7869623727. The cubic root of 489727471 is about 788.2273295819.

The spelling of 489727471 in words is "four hundred eighty-nine million, seven hundred twenty-seven thousand, four hundred seventy-one".