489737985 has 32 divisors (see below), whose sum is σ = 865658880. Its totient is φ = 234436800.

The previous prime is 489737953. The next prime is 489738013. The reversal of 489737985 is 589737984.

It is not a de Polignac number, because 489737985 - 2⁵ = 489737953 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5751 + ... + 31820.

It is an arithmetic number, because the mean of its divisors is an integer number (27051840).

Almost surely, 2^489737985 is an apocalyptic number.

It is an amenable number.

489737985 is a deficient number, since it is larger than the sum of its proper divisors (375920895).

489737985 is a wasteful number, since it uses less digits than its factorization.

489737985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37669.

The product of its digits is 15240960, while the sum is 60.

The square root of 489737985 is about 22130.0245142205. The cubic root of 489737985 is about 788.2329703810.

Subtracting 489737985 from its reverse (589737984), we obtain a palindrome (99999999).

The spelling of 489737985 in words is "four hundred eighty-nine million, seven hundred thirty-seven thousand, nine hundred eighty-five".