223486643 has 2 divisors, whose sum is σ = 223486644. Its totient is φ = 223486642.

The previous prime is 223486633. The next prime is 223486649. The reversal of 223486643 is 346684322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 223486643 - 2⁶ = 223486579 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 223486597 and 223486606.

It is not a weakly prime, because it can be changed into another prime (223486649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111743321 + 111743322.

It is an arithmetic number, because the mean of its divisors is an integer number (111743322).

Almost surely, 2^223486643 is an apocalyptic number.

223486643 is a deficient number, since it is larger than the sum of its proper divisors (1).

223486643 is an equidigital number, since it uses as much as digits as its factorization.

223486643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165888, while the sum is 38.

The square root of 223486643 is about 14949.4696561450. The cubic root of 223486643 is about 606.8534948008.

The spelling of 223486643 in words is "two hundred twenty-three million, four hundred eighty-six thousand, six hundred forty-three".