438223 has 2 divisors, whose sum is σ = 438224. Its totient is φ = 438222.

The previous prime is 438211. The next prime is 438233. The reversal of 438223 is 322834.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-438223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 438194 and 438203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (438203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219111 + 219112.

It is an arithmetic number, because the mean of its divisors is an integer number (219112).

2⁴³⁸²²³ is an apocalyptic number.

438223 is a deficient number, since it is larger than the sum of its proper divisors (1).

438223 is an equidigital number, since it uses as much as digits as its factorization.

438223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 22.

The square root of 438223 is about 661.9841387828. The cubic root of 438223 is about 75.9565194503.

The spelling of 438223 in words is "four hundred thirty-eight thousand, two hundred twenty-three".