489604665 has 64 divisors (see below), whose sum is σ = 882173952. Its totient is φ = 229824000.

The previous prime is 489604663. The next prime is 489604667. The reversal of 489604665 is 566406984.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (489604663) and next prime (489604667).

It is not a de Polignac number, because 489604665 - 2¹ = 489604663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (489604663) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1071117 + ... + 1071573.

It is an arithmetic number, because the mean of its divisors is an integer number (13783968).

Almost surely, 2^489604665 is an apocalyptic number.

It is an amenable number.

489604665 is a deficient number, since it is larger than the sum of its proper divisors (392569287).

489604665 is a wasteful number, since it uses less digits than its factorization.

489604665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670.

The product of its (nonzero) digits is 1244160, while the sum is 48.

The square root of 489604665 is about 22127.0121118962. The cubic root of 489604665 is about 788.1614377383.

The spelling of 489604665 in words is "four hundred eighty-nine million, six hundred four thousand, six hundred sixty-five".