223403 has 2 divisors, whose sum is σ = 223404. Its totient is φ = 223402.

The previous prime is 223381. The next prime is 223423. The reversal of 223403 is 304322.

223403 is nontrivially palindromic in base 14.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 223403 - 2⁶ = 223339 is a prime.

223403 is an undulating number in base 14.

It is a plaindrome in base 16.

It is not a weakly prime, because it can be changed into another prime (223423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111701 + 111702.

It is an arithmetic number, because the mean of its divisors is an integer number (111702).

2²²³⁴⁰³ is an apocalyptic number.

223403 is a deficient number, since it is larger than the sum of its proper divisors (1).

223403 is an equidigital number, since it uses as much as digits as its factorization.

223403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 223403 is about 472.6552654948. The cubic root of 223403 is about 60.6777777553.

Adding to 223403 its reverse (304322), we get a palindrome (527725).

It can be divided in two parts, 223 and 403, that added together give a palindrome (626).

The spelling of 223403 in words is "two hundred twenty-three thousand, four hundred three", and thus it is an iban number.