223246643 has 2 divisors, whose sum is σ = 223246644. Its totient is φ = 223246642.

The previous prime is 223246609. The next prime is 223246687. The reversal of 223246643 is 346642322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 223246643 - 2¹⁰ = 223245619 is a prime.

It is a super-3 number, since 3×223246643³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (223246603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111623321 + 111623322.

It is an arithmetic number, because the mean of its divisors is an integer number (111623322).

Almost surely, 2^223246643 is an apocalyptic number.

223246643 is a deficient number, since it is larger than the sum of its proper divisors (1).

223246643 is an equidigital number, since it uses as much as digits as its factorization.

223246643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 32.

The square root of 223246643 is about 14941.4404593399. The cubic root of 223246643 is about 606.6361857581.

Adding to 223246643 its reverse (346642322), we get a palindrome (569888965).

The spelling of 223246643 in words is "two hundred twenty-three million, two hundred forty-six thousand, six hundred forty-three".