489379689 has 24 divisors (see below), whose sum is σ = 735614880. Its totient is φ = 313250112.

The previous prime is 489379673. The next prime is 489379699. The reversal of 489379689 is 986973984.

489379689 is a `hidden beast` number, since 489 + 3 + 79 + 6 + 89 = 666.

It is not a de Polignac number, because 489379689 - 2⁴ = 489379673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (489379699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12117 + ... + 33549.

It is an arithmetic number, because the mean of its divisors is an integer number (30650620).

Almost surely, 2^489379689 is an apocalyptic number.

It is an amenable number.

489379689 is a deficient number, since it is larger than the sum of its proper divisors (246235191).

489379689 is a wasteful number, since it uses less digits than its factorization.

489379689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21541 (or 21538 counting only the distinct ones).

The product of its digits is 23514624, while the sum is 63.

The square root of 489379689 is about 22121.9277867007. The cubic root of 489379689 is about 788.0406977572.

The spelling of 489379689 in words is "four hundred eighty-nine million, three hundred seventy-nine thousand, six hundred eighty-nine".