489673898 has 16 divisors (see below), whose sum is σ = 845078400. Its totient is φ = 208450896.

The previous prime is 489673883. The next prime is 489673907. The reversal of 489673898 is 898376984.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 489673898.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 115286 + ... + 119457.

It is an arithmetic number, because the mean of its divisors is an integer number (52817400).

Almost surely, 2^489673898 is an apocalyptic number.

489673898 is a deficient number, since it is larger than the sum of its proper divisors (355404502).

489673898 is a wasteful number, since it uses less digits than its factorization.

489673898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234901.

The product of its digits is 20901888, while the sum is 62.

The square root of 489673898 is about 22128.5765018900. The cubic root of 489673898 is about 788.1985862194.

The spelling of 489673898 in words is "four hundred eighty-nine million, six hundred seventy-three thousand, eight hundred ninety-eight".