489332809 has 8 divisors (see below), whose sum is σ = 559473920. Its totient is φ = 419250816.

The previous prime is 489332801. The next prime is 489332813. The reversal of 489332809 is 908233984.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 489332809 - 2³ = 489332801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489332801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4672 + ... + 31630.

It is an arithmetic number, because the mean of its divisors is an integer number (69934240).

Almost surely, 2^489332809 is an apocalyptic number.

It is an amenable number.

489332809 is a deficient number, since it is larger than the sum of its proper divisors (70141111).

489332809 is a wasteful number, since it uses less digits than its factorization.

489332809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29559.

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 489332809 is about 22120.8681791651. The cubic root of 489332809 is about 788.0155335691.

The spelling of 489332809 in words is "four hundred eighty-nine million, three hundred thirty-two thousand, eight hundred nine".