489680539 has 4 divisors (see below), whose sum is σ = 496577520. Its totient is φ = 482783560.

The previous prime is 489680537. The next prime is 489680551. The reversal of 489680539 is 935086984.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 489680539 - 2¹ = 489680537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489680531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3448384 + ... + 3448525.

It is an arithmetic number, because the mean of its divisors is an integer number (124144380).

Almost surely, 2^489680539 is an apocalyptic number.

489680539 is a deficient number, since it is larger than the sum of its proper divisors (6896981).

489680539 is an equidigital number, since it uses as much as digits as its factorization.

489680539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6896980.

The product of its (nonzero) digits is 1866240, while the sum is 52.

The square root of 489680539 is about 22128.7265562210. The cubic root of 489680539 is about 788.2021494093.

The spelling of 489680539 in words is "four hundred eighty-nine million, six hundred eighty thousand, five hundred thirty-nine".