489499469 has 2 divisors, whose sum is σ = 489499470. Its totient is φ = 489499468.

The previous prime is 489499453. The next prime is 489499499. The reversal of 489499469 is 964994984.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 337273225 + 152226244 = 18365^2 + 12338^2 .

It is a cyclic number.

It is not a de Polignac number, because 489499469 - 2⁴ = 489499453 is a prime.

It is a super-2 number, since 2×489499469² = 479219460302563922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (489499499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244749734 + 244749735.

It is an arithmetic number, because the mean of its divisors is an integer number (244749735).

Almost surely, 2^489499469 is an apocalyptic number.

It is an amenable number.

489499469 is a deficient number, since it is larger than the sum of its proper divisors (1).

489499469 is an equidigital number, since it uses as much as digits as its factorization.

489499469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20155392, while the sum is 62.

The square root of 489499469 is about 22124.6348896428. The cubic root of 489499469 is about 788.1049858188.

The spelling of 489499469 in words is "four hundred eighty-nine million, four hundred ninety-nine thousand, four hundred sixty-nine".