7225666 has 16 divisors (see below), whose sum is σ = 12787200. Its totient is φ = 2996640.

The previous prime is 7225661. The next prime is 7225667. The reversal of 7225666 is 6665227.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (7225661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7891 + ... + 8758.

It is an arithmetic number, because the mean of its divisors is an integer number (799200).

Almost surely, 2^7225666 is an apocalyptic number.

7225666 is a deficient number, since it is larger than the sum of its proper divisors (5561534).

7225666 is a wasteful number, since it uses less digits than its factorization.

7225666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16689.

The product of its digits is 30240, while the sum is 34.

The square root of 7225666 is about 2688.0598951660. The cubic root of 7225666 is about 193.3270515861.

The spelling of 7225666 in words is "seven million, two hundred twenty-five thousand, six hundred sixty-six".