223280747 has 2 divisors, whose sum is σ = 223280748. Its totient is φ = 223280746.

The previous prime is 223280689. The next prime is 223280749. The reversal of 223280747 is 747082322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 223280747 - 2⁶ = 223280683 is a prime.

It is a super-3 number, since 3×223280747³ (a number of 26 digits) contains 333 as substring.

Together with 223280749, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (223280749) 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, 111640373 + 111640374.

It is an arithmetic number, because the mean of its divisors is an integer number (111640374).

Almost surely, 2^223280747 is an apocalyptic number.

223280747 is a deficient number, since it is larger than the sum of its proper divisors (1).

223280747 is an equidigital number, since it uses as much as digits as its factorization.

223280747 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37632, while the sum is 35.

The square root of 223280747 is about 14942.5816711839. The cubic root of 223280747 is about 606.6670748632.

The spelling of 223280747 in words is "two hundred twenty-three million, two hundred eighty thousand, seven hundred forty-seven".