12408223 has 2 divisors, whose sum is σ = 12408224. Its totient is φ = 12408222.

The previous prime is 12408211. The next prime is 12408229. The reversal of 12408223 is 32280421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12408223 - 2¹⁷ = 12277151 is a prime.

It is equal to p₈₁₃₁₀₉ and since 12408223 and 813109 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 12408194 and 12408203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12408229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6204111 + 6204112.

It is an arithmetic number, because the mean of its divisors is an integer number (6204112).

Almost surely, 2^12408223 is an apocalyptic number.

12408223 is a deficient number, since it is larger than the sum of its proper divisors (1).

12408223 is an equidigital number, since it uses as much as digits as its factorization.

12408223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 12408223 is about 3522.5307663667. The cubic root of 12408223 is about 231.5100577648.

Adding to 12408223 its reverse (32280421), we get a palindrome (44688644).

The spelling of 12408223 in words is "twelve million, four hundred eight thousand, two hundred twenty-three".