4223239 has 2 divisors, whose sum is σ = 4223240. Its totient is φ = 4223238.

The previous prime is 4223231. The next prime is 4223243. The reversal of 4223239 is 9323224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4223239 - 2³ = 4223231 is a prime.

It is a super-2 number, since 2×4223239² = 35671495302242, which contains 22 as substring.

It is a d-powerful number, because it can be written as 4⁵ + 2¹³ + 2²¹ + 3³ + 2²¹ + 3⁹ + 9 .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4223231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2111619 + 2111620.

It is an arithmetic number, because the mean of its divisors is an integer number (2111620).

Almost surely, 2^4223239 is an apocalyptic number.

4223239 is a deficient number, since it is larger than the sum of its proper divisors (1).

4223239 is an equidigital number, since it uses as much as digits as its factorization.

4223239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 25.

The square root of 4223239 is about 2055.0520674669. The cubic root of 4223239 is about 161.6398925914.

The spelling of 4223239 in words is "four million, two hundred twenty-three thousand, two hundred thirty-nine".