489111983 has 8 divisors (see below), whose sum is σ = 491727600. Its totient is φ = 486504000.

The previous prime is 489111979. The next prime is 489112021. The reversal of 489111983 is 389111984.

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 489111983 - 2² = 489111979 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489111383) 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, 161483 + ... + 164483.

It is an arithmetic number, because the mean of its divisors is an integer number (61465950).

Almost surely, 2^489111983 is an apocalyptic number.

489111983 is a deficient number, since it is larger than the sum of its proper divisors (2615617).

489111983 is a wasteful number, since it uses less digits than its factorization.

489111983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3817.

The product of its digits is 62208, while the sum is 44.

The square root of 489111983 is about 22115.8762657056. The cubic root of 489111983 is about 787.8969772424.

Subtracting from 489111983 its reverse (389111984), we obtain a palindrome (99999999).

It can be divided in two parts, 489111 and 983, that added together give a palindrome (490094).

The spelling of 489111983 in words is "four hundred eighty-nine million, one hundred eleven thousand, nine hundred eighty-three".