489848979 has 4 divisors (see below), whose sum is σ = 653131976. Its totient is φ = 326565984.

The previous prime is 489848959. The next prime is 489849007. The reversal of 489848979 is 979848984.

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

It is not a de Polignac number, because 489848979 - 2⁹ = 489848467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489848929) 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, 81641494 + ... + 81641499.

It is an arithmetic number, because the mean of its divisors is an integer number (163282994).

Almost surely, 2^489848979 is an apocalyptic number.

489848979 is a deficient number, since it is larger than the sum of its proper divisors (163282997).

489848979 is a wasteful number, since it uses less digits than its factorization.

489848979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163282996.

The product of its digits is 41803776, while the sum is 66.

The square root of 489848979 is about 22132.5321416236. The cubic root of 489848979 is about 788.2925141400.

The spelling of 489848979 in words is "four hundred eighty-nine million, eight hundred forty-eight thousand, nine hundred seventy-nine".