268223633 has 2 divisors, whose sum is σ = 268223634. Its totient is φ = 268223632.

The previous prime is 268223621. The next prime is 268223647. The reversal of 268223633 is 336322862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 224041024 + 44182609 = 14968^2 + 6647^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268223633 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 268223593 and 268223602.

It is not a weakly prime, because it can be changed into another prime (268223663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134111816 + 134111817.

It is an arithmetic number, because the mean of its divisors is an integer number (134111817).

Almost surely, 2^268223633 is an apocalyptic number.

It is an amenable number.

268223633 is a deficient number, since it is larger than the sum of its proper divisors (1).

268223633 is an equidigital number, since it uses as much as digits as its factorization.

268223633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 35.

The square root of 268223633 is about 16377.5343992922. The cubic root of 268223633 is about 644.9098549980.

The spelling of 268223633 in words is "two hundred sixty-eight million, two hundred twenty-three thousand, six hundred thirty-three".