487521664 has 32 divisors (see below), whose sum is σ = 1109984400. Its totient is φ = 208937472.

The previous prime is 487521653. The next prime is 487521673. The reversal of 487521664 is 466125784.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 487521664.

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, 271159 + ... + 272950.

Almost surely, 2^487521664 is an apocalyptic number.

It is an amenable number.

487521664 is an abundant number, since it is smaller than the sum of its proper divisors (622462736).

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

487521664 is an equidigital number, since it uses as much as digits as its factorization.

487521664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544130 (or 544118 counting only the distinct ones).

The product of its digits is 322560, while the sum is 43.

The square root of 487521664 is about 22079.8927533627. The cubic root of 487521664 is about 787.0421164185.

The spelling of 487521664 in words is "four hundred eighty-seven million, five hundred twenty-one thousand, six hundred sixty-four".