223312393 has 2 divisors, whose sum is σ = 223312394. Its totient is φ = 223312392.

The previous prime is 223312361. The next prime is 223312417. The reversal of 223312393 is 393213322.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115089984 + 108222409 = 10728^2 + 10403^2 .

It is a cyclic number.

It is not a de Polignac number, because 223312393 - 2⁵ = 223312361 is a prime.

It is not a weakly prime, because it can be changed into another prime (223312693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111656196 + 111656197.

It is an arithmetic number, because the mean of its divisors is an integer number (111656197).

Almost surely, 2^223312393 is an apocalyptic number.

It is an amenable number.

223312393 is a deficient number, since it is larger than the sum of its proper divisors (1).

223312393 is an equidigital number, since it uses as much as digits as its factorization.

223312393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 28.

The square root of 223312393 is about 14943.6405537607. The cubic root of 223312393 is about 606.6957348642.

The spelling of 223312393 in words is "two hundred twenty-three million, three hundred twelve thousand, three hundred ninety-three".