7223866 has 16 divisors (see below), whose sum is σ = 11781000. Its totient is φ = 3302208.

The previous prime is 7223851. The next prime is 7223893. The reversal of 7223866 is 6683227.

It can be written as a sum of positive squares in 4 ways, for example, as 6838225 + 385641 = 2615^2 + 621^2 .

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 7 ways as a sum of consecutive naturals, for example, 1560 + ... + 4108.

Almost surely, 2^7223866 is an apocalyptic number.

7223866 is a deficient number, since it is larger than the sum of its proper divisors (4557134).

7223866 is a wasteful number, since it uses less digits than its factorization.

7223866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2673.

The product of its digits is 24192, while the sum is 34.

The square root of 7223866 is about 2687.7250603438. The cubic root of 7223866 is about 193.3109968910.

The spelling of 7223866 in words is "seven million, two hundred twenty-three thousand, eight hundred sixty-six".