489219469 has 2 divisors, whose sum is σ = 489219470. Its totient is φ = 489219468.

The previous prime is 489219449. The next prime is 489219481. The reversal of 489219469 is 964912984.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 296287369 + 192932100 = 17213^2 + 13890^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-489219469 is a prime.

It is a super-2 number, since 2×489219469² = 478671377697283922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (489219449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244609734 + 244609735.

It is an arithmetic number, because the mean of its divisors is an integer number (244609735).

Almost surely, 2^489219469 is an apocalyptic number.

It is an amenable number.

489219469 is a deficient number, since it is larger than the sum of its proper divisors (1).

489219469 is an equidigital number, since it uses as much as digits as its factorization.

489219469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1119744, while the sum is 52.

The square root of 489219469 is about 22118.3061964518. The cubic root of 489219469 is about 787.9546884241.

The spelling of 489219469 in words is "four hundred eighty-nine million, two hundred nineteen thousand, four hundred sixty-nine".