489297986 has 16 divisors (see below), whose sum is σ = 759390720. Its totient is φ = 236204640.

The previous prime is 489297877. The next prime is 489297997. The reversal of 489297986 is 689792984.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18230 + ... + 36206.

It is an arithmetic number, because the mean of its divisors is an integer number (47461920).

Almost surely, 2^489297986 is an apocalyptic number.

489297986 is a deficient number, since it is larger than the sum of its proper divisors (270092734).

489297986 is a wasteful number, since it uses less digits than its factorization.

489297986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18449.

The product of its digits is 15676416, while the sum is 62.

The square root of 489297986 is about 22120.0810577177. The cubic root of 489297986 is about 787.9968402821.

The spelling of 489297986 in words is "four hundred eighty-nine million, two hundred ninety-seven thousand, nine hundred eighty-six".