7288664 has 16 divisors (see below), whose sum is σ = 13698600. Its totient is φ = 3635712.

The previous prime is 7288661. The next prime is 7288691. The reversal of 7288664 is 4668827.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7288661) 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, 3827 + ... + 5405.

Almost surely, 2^7288664 is an apocalyptic number.

It is an amenable number.

7288664 is a deficient number, since it is larger than the sum of its proper divisors (6409936).

7288664 is a wasteful number, since it uses less digits than its factorization.

7288664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2162 (or 2158 counting only the distinct ones).

The product of its digits is 129024, while the sum is 41.

The square root of 7288664 is about 2699.7525812563. The cubic root of 7288664 is about 193.8872764214.

The spelling of 7288664 in words is "seven million, two hundred eighty-eight thousand, six hundred sixty-four".