489737986 has 8 divisors (see below), whose sum is σ = 742861260. Its totient is φ = 242117568.

The previous prime is 489737953. The next prime is 489738013. The reversal of 489737986 is 689737984.

It can be written as a sum of positive squares in 2 ways, for example, as 462895225 + 26842761 = 21515^2 + 5181^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 1375491 + ... + 1375846.

Almost surely, 2^489737986 is an apocalyptic number.

489737986 is a deficient number, since it is larger than the sum of its proper divisors (253123274).

489737986 is a wasteful number, since it uses less digits than its factorization.

489737986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2751428.

The product of its digits is 18289152, while the sum is 61.

The square root of 489737986 is about 22130.0245368142. The cubic root of 489737986 is about 788.2329709175.

The spelling of 489737986 in words is "four hundred eighty-nine million, seven hundred thirty-seven thousand, nine hundred eighty-six".