489669291 has 12 divisors (see below), whose sum is σ = 708381960. Its totient is φ = 325946880.

The previous prime is 489669281. The next prime is 489669353. The reversal of 489669291 is 192966984.

It is not a de Polignac number, because 489669291 - 2⁵ = 489669259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (489669281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35350 + ... + 47211.

It is an arithmetic number, because the mean of its divisors is an integer number (59031830).

Almost surely, 2^489669291 is an apocalyptic number.

489669291 is a deficient number, since it is larger than the sum of its proper divisors (218712669).

489669291 is a wasteful number, since it uses less digits than its factorization.

489669291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83226 (or 83223 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 54.

The square root of 489669291 is about 22128.4724054780. The cubic root of 489669291 is about 788.1961143415.

The spelling of 489669291 in words is "four hundred eighty-nine million, six hundred sixty-nine thousand, two hundred ninety-one".