223603643 has 2 divisors, whose sum is σ = 223603644. Its totient is φ = 223603642.

The previous prime is 223603607. The next prime is 223603649. The reversal of 223603643 is 346306322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 223603643 - 2⁶ = 223603579 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (223603649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111801821 + 111801822.

It is an arithmetic number, because the mean of its divisors is an integer number (111801822).

Almost surely, 2^223603643 is an apocalyptic number.

223603643 is a deficient number, since it is larger than the sum of its proper divisors (1).

223603643 is an equidigital number, since it uses as much as digits as its factorization.

223603643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 29.

The square root of 223603643 is about 14953.3823264170. The cubic root of 223603643 is about 606.9593765532.

Adding to 223603643 its reverse (346306322), we get a palindrome (569909965).

The spelling of 223603643 in words is "two hundred twenty-three million, six hundred three thousand, six hundred forty-three".