487664 has 20 divisors (see below), whose sum is σ = 978360. Its totient is φ = 235200.

The previous prime is 487657. The next prime is 487681. The reversal of 487664 is 466784.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62 + ... + 989.

It is an arithmetic number, because the mean of its divisors is an integer number (48918).

2⁴⁸⁷⁶⁶⁴ is an apocalyptic number.

It is an amenable number.

487664 is an abundant number, since it is smaller than the sum of its proper divisors (490696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

487664 is a wasteful number, since it uses less digits than its factorization.

487664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088 (or 1082 counting only the distinct ones).

The product of its digits is 32256, while the sum is 35.

The square root of 487664 is about 698.3294351522. The cubic root of 487664 is about 78.7118703460.

The spelling of 487664 in words is "four hundred eighty-seven thousand, six hundred sixty-four".