2223665 has 16 divisors (see below), whose sum is σ = 2851200. Its totient is φ = 1660032.

The previous prime is 2223631. The next prime is 2223671. The reversal of 2223665 is 5663222.

2223665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2223665 - 2¹⁴ = 2207281 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8324 + ... + 8586.

It is an arithmetic number, because the mean of its divisors is an integer number (178200).

2^2223665 is an apocalyptic number.

It is an amenable number.

2223665 is a deficient number, since it is larger than the sum of its proper divisors (627535).

2223665 is a wasteful number, since it uses less digits than its factorization.

2223665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376.

The product of its digits is 4320, while the sum is 26.

The square root of 2223665 is about 1491.1958288568. The cubic root of 2223665 is about 130.5238233494.

Adding to 2223665 its reverse (5663222), we get a palindrome (7886887).

The spelling of 2223665 in words is "two million, two hundred twenty-three thousand, six hundred sixty-five".