4487664 has 20 divisors (see below), whose sum is σ = 11593256. Its totient is φ = 1495872.

The previous prime is 4487627. The next prime is 4487671. The reversal of 4487664 is 4667844.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46699 + ... + 46794.

Almost surely, 2^4487664 is an apocalyptic number.

It is an amenable number.

4487664 is an abundant number, since it is smaller than the sum of its proper divisors (7105592).

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

4487664 is a wasteful number, since it uses less digits than its factorization.

4487664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93504 (or 93498 counting only the distinct ones).

The product of its digits is 129024, while the sum is 39.

The square root of 4487664 is about 2118.4107250484. The cubic root of 4487664 is about 164.9453629934.

It can be divided in two parts, 4487 and 664, that added together give a triangular number (5151 = T₁₀₁).

The spelling of 4487664 in words is "four million, four hundred eighty-seven thousand, six hundred sixty-four".