4223431 has 2 divisors, whose sum is σ = 4223432. Its totient is φ = 4223430.

The previous prime is 4223413. The next prime is 4223441. The reversal of 4223431 is 1343224.

Together with previous prime (4223413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4223431 - 2¹⁵ = 4190663 is a prime.

It is a super-2 number, since 2×4223431² = 35674738823522, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 4⁴ + 2 + 2²¹ + 3¹² + 4⁴ + 3¹³ + 1 .

It is a junction number, because it is equal to n+sod(n) for n = 4223399 and 4223408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4223441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2111715 + 2111716.

It is an arithmetic number, because the mean of its divisors is an integer number (2111716).

Almost surely, 2^4223431 is an apocalyptic number.

4223431 is a deficient number, since it is larger than the sum of its proper divisors (1).

4223431 is an equidigital number, since it uses as much as digits as its factorization.

4223431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 19.

The square root of 4223431 is about 2055.0987810809. The cubic root of 4223431 is about 161.6423420849.

Adding to 4223431 its reverse (1343224), we get a palindrome (5566655).

The spelling of 4223431 in words is "four million, two hundred twenty-three thousand, four hundred thirty-one".