223444393 has 2 divisors, whose sum is σ = 223444394. Its totient is φ = 223444392.

The previous prime is 223444381. The next prime is 223444409. The reversal of 223444393 is 393444322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 184606569 + 38837824 = 13587^2 + 6232^2 .

It is a cyclic number.

It is not a de Polignac number, because 223444393 - 2⁹ = 223443881 is a prime.

It is not a weakly prime, because it can be changed into another prime (223444303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111722196 + 111722197.

It is an arithmetic number, because the mean of its divisors is an integer number (111722197).

Almost surely, 2^223444393 is an apocalyptic number.

It is an amenable number.

223444393 is a deficient number, since it is larger than the sum of its proper divisors (1).

223444393 is an equidigital number, since it uses as much as digits as its factorization.

223444393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 34.

The square root of 223444393 is about 14948.0564957455. The cubic root of 223444393 is about 606.8152506420.

The spelling of 223444393 in words is "two hundred twenty-three million, four hundred forty-four thousand, three hundred ninety-three".