4008664 has 16 divisors (see below), whose sum is σ = 8199720. Its totient is φ = 1822080.

The previous prime is 4008661. The next prime is 4008671. The reversal of 4008664 is 4668004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4008661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22689 + ... + 22864.

Almost surely, 2^4008664 is an apocalyptic number.

4008664 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

4008664 is an abundant number, since it is smaller than the sum of its proper divisors (4191056).

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

4008664 is a wasteful number, since it uses less digits than its factorization.

4008664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45570 (or 45566 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 4008664 is about 2002.1648283795. The cubic root of 4008664 is about 158.8546329035.

The spelling of 4008664 in words is "four million, eight thousand, six hundred sixty-four".