7228664 has 24 divisors (see below), whose sum is σ = 14310360. Its totient is φ = 3422736.

The previous prime is 7228657. The next prime is 7228681. The reversal of 7228664 is 4668227.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1637 + ... + 4139.

It is an arithmetic number, because the mean of its divisors is an integer number (596265).

Almost surely, 2^7228664 is an apocalyptic number.

It is an amenable number.

7228664 is a deficient number, since it is larger than the sum of its proper divisors (7081696).

7228664 is a wasteful number, since it uses less digits than its factorization.

7228664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2547 (or 2524 counting only the distinct ones).

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

The square root of 7228664 is about 2688.6174885989. The cubic root of 7228664 is about 193.3537856551.

The spelling of 7228664 in words is "seven million, two hundred twenty-eight thousand, six hundred sixty-four".