223935247 has 2 divisors, whose sum is σ = 223935248. Its totient is φ = 223935246.

The previous prime is 223935221. The next prime is 223935259. The reversal of 223935247 is 742539322.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223935247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223935947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111967623 + 111967624.

It is an arithmetic number, because the mean of its divisors is an integer number (111967624).

Almost surely, 2^223935247 is an apocalyptic number.

223935247 is a deficient number, since it is larger than the sum of its proper divisors (1).

223935247 is an equidigital number, since it uses as much as digits as its factorization.

223935247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 37.

The square root of 223935247 is about 14964.4661448379. The cubic root of 223935247 is about 607.2592684241.

The spelling of 223935247 in words is "two hundred twenty-three million, nine hundred thirty-five thousand, two hundred forty-seven".