489859281 has 6 divisors (see below), whose sum is σ = 707574530. Its totient is φ = 326572848.

The previous prime is 489859247. The next prime is 489859289. The reversal of 489859281 is 182958984.

489859281 is a `hidden beast` number, since 48 + 9 + 8 + 592 + 8 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 282240000 + 207619281 = 16800^2 + 14409^2 .

It is not a de Polignac number, because 489859281 - 2¹¹ = 489857233 is a prime.

It is a super-2 number, since 2×489859281² = 479924230363673922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489859289) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27214396 + ... + 27214413.

Almost surely, 2^489859281 is an apocalyptic number.

It is an amenable number.

489859281 is a deficient number, since it is larger than the sum of its proper divisors (217715249).

489859281 is a wasteful number, since it uses less digits than its factorization.

489859281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54428815 (or 54428812 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 54.

The square root of 489859281 is about 22132.7648747281. The cubic root of 489859281 is about 788.2980402871.

The spelling of 489859281 in words is "four hundred eighty-nine million, eight hundred fifty-nine thousand, two hundred eighty-one".