489559761 has 64 divisors (see below), whose sum is σ = 812851200. Its totient is φ = 289605888.

The previous prime is 489559753. The next prime is 489559769. The reversal of 489559761 is 167955984.

489559761 is a `hidden beast` number, since 4 + 89 + 559 + 7 + 6 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (489559753) and next prime (489559769).

It is not a de Polignac number, because 489559761 - 2³ = 489559753 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 489559698 and 489559707.

It is not an unprimeable number, because it can be changed into a prime (489559769) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 833710 + ... + 834296.

It is an arithmetic number, because the mean of its divisors is an integer number (12700800).

Almost surely, 2^489559761 is an apocalyptic number.

It is an amenable number.

489559761 is a deficient number, since it is larger than the sum of its proper divisors (323291439).

489559761 is a wasteful number, since it uses less digits than its factorization.

489559761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715 (or 709 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 54.

The square root of 489559761 is about 22125.9974012472. The cubic root of 489559761 is about 788.1373416421.

The spelling of 489559761 in words is "four hundred eighty-nine million, five hundred fifty-nine thousand, seven hundred sixty-one".