4223566 has 4 divisors (see below), whose sum is σ = 6335352. Its totient is φ = 2111782.

The previous prime is 4223563. The next prime is 4223617. The reversal of 4223566 is 6653224.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an Ulam number.

It is a d-powerful number, because it can be written as 4² + 2¹⁹ + 2²¹ + 3¹³ + 5 + 6 + 6⁵ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4223563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055890 + ... + 1055893.

It is an arithmetic number, because the mean of its divisors is an integer number (1583838).

Almost surely, 2^4223566 is an apocalyptic number.

4223566 is a deficient number, since it is larger than the sum of its proper divisors (2111786).

4223566 is a wasteful number, since it uses less digits than its factorization.

4223566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111785.

The product of its digits is 8640, while the sum is 28.

The square root of 4223566 is about 2055.1316259549. The cubic root of 4223566 is about 161.6440643405.

The spelling of 4223566 in words is "four million, two hundred twenty-three thousand, five hundred sixty-six".