489900856 has 16 divisors (see below), whose sum is σ = 928886400. Its totient is φ = 242197824.

The previous prime is 489900847. The next prime is 489900869. The reversal of 489900856 is 658009984.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343320 + ... + 344743.

It is an arithmetic number, because the mean of its divisors is an integer number (58055400).

Almost surely, 2^489900856 is an apocalyptic number.

It is an amenable number.

489900856 is a deficient number, since it is larger than the sum of its proper divisors (438985544).

489900856 is a wasteful number, since it uses less digits than its factorization.

489900856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688158 (or 688154 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 49.

The square root of 489900856 is about 22133.7040732002. The cubic root of 489900856 is about 788.3203409526.

The spelling of 489900856 in words is "four hundred eighty-nine million, nine hundred thousand, eight hundred fifty-six".