489649959 has 6 divisors (see below), whose sum is σ = 707272176. Its totient is φ = 326433300.

The previous prime is 489649943. The next prime is 489649961. The reversal of 489649959 is 959946984.

489649959 is a `hidden beast` number, since 4 + 8 + 96 + 499 + 59 = 666.

It is not a de Polignac number, because 489649959 - 2⁴ = 489649943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 489649896 and 489649905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489644959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27202767 + ... + 27202784.

It is an arithmetic number, because the mean of its divisors is an integer number (117878696).

Almost surely, 2^489649959 is an apocalyptic number.

489649959 is a deficient number, since it is larger than the sum of its proper divisors (217622217).

489649959 is a wasteful number, since it uses less digits than its factorization.

489649959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54405557 (or 54405554 counting only the distinct ones).

The product of its digits is 25194240, while the sum is 63.

The square root of 489649959 is about 22128.0355883662. The cubic root of 489649959 is about 788.1857416212.

The spelling of 489649959 in words is "four hundred eighty-nine million, six hundred forty-nine thousand, nine hundred fifty-nine".