489385983 has 8 divisors (see below), whose sum is σ = 686857600. Its totient is φ = 309085848.

The previous prime is 489385979. The next prime is 489385993. The reversal of 489385983 is 389583984.

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

It is not a de Polignac number, because 489385983 - 2² = 489385979 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57), and also a Moran number because the ratio is a prime number: 8585719 = 489385983 / (4 + 8 + 9 + 3 + 8 + 5 + 9 + 8 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489385913) 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, 4292803 + ... + 4292916.

It is an arithmetic number, because the mean of its divisors is an integer number (85857200).

Almost surely, 2^489385983 is an apocalyptic number.

489385983 is a deficient number, since it is larger than the sum of its proper divisors (197471617).

489385983 is a wasteful number, since it uses less digits than its factorization.

489385983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8585741.

The product of its digits is 7464960, while the sum is 57.

The square root of 489385983 is about 22122.0700432848. The cubic root of 489385983 is about 788.0440761203.

The spelling of 489385983 in words is "four hundred eighty-nine million, three hundred eighty-five thousand, nine hundred eighty-three".