223338649 has 2 divisors, whose sum is σ = 223338650. Its totient is φ = 223338648.

The previous prime is 223338613. The next prime is 223338677. The reversal of 223338649 is 946833322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 217769049 + 5569600 = 14757^2 + 2360^2 .

It is a cyclic number.

It is not a de Polignac number, because 223338649 - 2¹⁵ = 223305881 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (223338149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111669324 + 111669325.

It is an arithmetic number, because the mean of its divisors is an integer number (111669325).

Almost surely, 2^223338649 is an apocalyptic number.

It is an amenable number.

223338649 is a deficient number, since it is larger than the sum of its proper divisors (1).

223338649 is an equidigital number, since it uses as much as digits as its factorization.

223338649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 40.

The square root of 223338649 is about 14944.5190287276. The cubic root of 223338649 is about 606.7195113905.

The spelling of 223338649 in words is "two hundred twenty-three million, three hundred thirty-eight thousand, six hundred forty-nine".