489463189 has 4 divisors (see below), whose sum is σ = 506341260. Its totient is φ = 472585120.

The previous prime is 489463187. The next prime is 489463231. The reversal of 489463189 is 981364984.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 122434225 + 367028964 = 11065^2 + 19158^2 .

It is a cyclic number.

It is not a de Polignac number, because 489463189 - 2¹ = 489463187 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 (489463187) 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, 8438992 + ... + 8439049.

It is an arithmetic number, because the mean of its divisors is an integer number (126585315).

Almost surely, 2^489463189 is an apocalyptic number.

It is an amenable number.

489463189 is a deficient number, since it is larger than the sum of its proper divisors (16878071).

489463189 is a wasteful number, since it uses less digits than its factorization.

489463189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16878070.

The product of its digits is 1492992, while the sum is 52.

The square root of 489463189 is about 22123.8149739144. The cubic root of 489463189 is about 788.0855148032.

The spelling of 489463189 in words is "four hundred eighty-nine million, four hundred sixty-three thousand, one hundred eighty-nine".