4223671 has 4 divisors (see below), whose sum is σ = 4267312. Its totient is φ = 4180032.

The previous prime is 4223669. The next prime is 4223677. The reversal of 4223671 is 1763224.

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

It is a cyclic number.

It is not a de Polignac number, because 4223671 - 2¹ = 4223669 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4223677) 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 in 3 ways as a sum of consecutive naturals, for example, 21675 + ... + 21868.

It is an arithmetic number, because the mean of its divisors is an integer number (1066828).

Almost surely, 2^4223671 is an apocalyptic number.

4223671 is a deficient number, since it is larger than the sum of its proper divisors (43641).

4223671 is an equidigital number, since it uses as much as digits as its factorization.

4223671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43640.

The product of its digits is 2016, while the sum is 25.

The square root of 4223671 is about 2055.1571716051. The cubic root of 4223671 is about 161.6454038473.

Adding to 4223671 its reverse (1763224), we get a palindrome (5986895).

The spelling of 4223671 in words is "four million, two hundred twenty-three thousand, six hundred seventy-one".