489859977 has 4 divisors (see below), whose sum is σ = 653146640. Its totient is φ = 326573316.

The previous prime is 489859969. The next prime is 489860009. The reversal of 489859977 is 779958984.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 489859977 - 2³ = 489859969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489859927) 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, 81643327 + ... + 81643332.

It is an arithmetic number, because the mean of its divisors is an integer number (163286660).

Almost surely, 2^489859977 is an apocalyptic number.

It is an amenable number.

489859977 is a deficient number, since it is larger than the sum of its proper divisors (163286663).

489859977 is a wasteful number, since it uses less digits than its factorization.

489859977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163286662.

The product of its digits is 45722880, while the sum is 66.

The square root of 489859977 is about 22132.7805980180. The cubic root of 489859977 is about 788.2984136291.

The spelling of 489859977 in words is "four hundred eighty-nine million, eight hundred fifty-nine thousand, nine hundred seventy-seven".