489669371 has 4 divisors (see below), whose sum is σ = 492206712. Its totient is φ = 487132032.

The previous prime is 489669353. The next prime is 489669391. The reversal of 489669371 is 173966984.

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

It is a cyclic number.

It is not a de Polignac number, because 489669371 - 2¹⁴ = 489652987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489669391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1268381 + ... + 1268766.

It is an arithmetic number, because the mean of its divisors is an integer number (123051678).

Almost surely, 2^489669371 is an apocalyptic number.

489669371 is a deficient number, since it is larger than the sum of its proper divisors (2537341).

489669371 is a wasteful number, since it uses less digits than its factorization.

489669371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2537340.

The product of its digits is 1959552, while the sum is 53.

The square root of 489669371 is about 22128.4742131038. The cubic root of 489669371 is about 788.1961572655.

The spelling of 489669371 in words is "four hundred eighty-nine million, six hundred sixty-nine thousand, three hundred seventy-one".