2223764 has 6 divisors (see below), whose sum is σ = 3891594. Its totient is φ = 1111880.

The previous prime is 2223761. The next prime is 2223773. The reversal of 2223764 is 4673222.

2223764 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2079364 + 144400 = 1442^2 + 380^2 .

It is a d-powerful number, because it can be written as 2⁶ + 2¹⁸ + 2¹⁸ + 3⁹ + 7² + 6⁸ + 4³ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2223761) by changing a digit.

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 as a sum of consecutive naturals, namely, 277967 + ... + 277974.

It is an arithmetic number, because the mean of its divisors is an integer number (648599).

2^2223764 is an apocalyptic number.

It is an amenable number.

2223764 is a deficient number, since it is larger than the sum of its proper divisors (1667830).

2223764 is a wasteful number, since it uses less digits than its factorization.

2223764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555945 (or 555943 counting only the distinct ones).

The product of its digits is 4032, while the sum is 26.

The square root of 2223764 is about 1491.2290233227. The cubic root of 2223764 is about 130.5257603419.

Adding to 2223764 its reverse (4673222), we get a palindrome (6896986).

The spelling of 2223764 in words is "two million, two hundred twenty-three thousand, seven hundred sixty-four".