489604521 has 48 divisors (see below), whose sum is σ = 803362560. Its totient is φ = 263723040.

The previous prime is 489604517. The next prime is 489604537. The reversal of 489604521 is 125406984.

It is not a de Polignac number, because 489604521 - 2² = 489604517 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 489604521.

It is not an unprimeable number, because it can be changed into a prime (489604021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 857166 + ... + 857736.

It is an arithmetic number, because the mean of its divisors is an integer number (16736720).

Almost surely, 2^489604521 is an apocalyptic number.

It is an amenable number.

489604521 is a deficient number, since it is larger than the sum of its proper divisors (313758039).

489604521 is a wasteful number, since it uses less digits than its factorization.

489604521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914 (or 907 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 489604521 is about 22127.0088579546. The cubic root of 489604521 is about 788.1613604683.

The spelling of 489604521 in words is "four hundred eighty-nine million, six hundred four thousand, five hundred twenty-one".