2223947 has 8 divisors (see below), whose sum is σ = 2441712. Its totient is φ = 2008800.

The previous prime is 2223943. The next prime is 2223967. The reversal of 2223947 is 7493222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2223947 - 2² = 2223943 is a prime.

It is a d-powerful number, because it can be written as 2⁹ + 2¹¹ + 2²¹ + 3⁸ + 9 + 4² + 7⁶ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2223943) by changing a digit.

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, 1433 + ... + 2549.

It is an arithmetic number, because the mean of its divisors is an integer number (305214).

2^2223947 is an apocalyptic number.

2223947 is a deficient number, since it is larger than the sum of its proper divisors (217765).

2223947 is a wasteful number, since it uses less digits than its factorization.

2223947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1309.

The product of its digits is 6048, while the sum is 29.

The square root of 2223947 is about 1491.2903808447. The cubic root of 2223947 is about 130.5293406916.

The spelling of 2223947 in words is "two million, two hundred twenty-three thousand, nine hundred forty-seven".