489681543 has 16 divisors (see below), whose sum is σ = 703840256. Its totient is φ = 301039200.

The previous prime is 489681539. The next prime is 489681589. The reversal of 489681543 is 345186984.

It is not a de Polignac number, because 489681543 - 2² = 489681539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 489681492 and 489681501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489681593) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36618 + ... + 48168.

It is an arithmetic number, because the mean of its divisors is an integer number (43990016).

Almost surely, 2^489681543 is an apocalyptic number.

489681543 is a deficient number, since it is larger than the sum of its proper divisors (214158713).

489681543 is a wasteful number, since it uses less digits than its factorization.

489681543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12654.

The product of its digits is 829440, while the sum is 48.

The square root of 489681543 is about 22128.7492416539. The cubic root of 489681543 is about 788.2026880968.

The spelling of 489681543 in words is "four hundred eighty-nine million, six hundred eighty-one thousand, five hundred forty-three".