223308947 has 2 divisors, whose sum is σ = 223308948. Its totient is φ = 223308946.

The previous prime is 223308941. The next prime is 223308973. The reversal of 223308947 is 749803322.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 223308947 - 2¹⁶ = 223243411 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 223308947.

It is not a weakly prime, because it can be changed into another prime (223308941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111654473 + 111654474.

It is an arithmetic number, because the mean of its divisors is an integer number (111654474).

Almost surely, 2^223308947 is an apocalyptic number.

223308947 is a deficient number, since it is larger than the sum of its proper divisors (1).

223308947 is an equidigital number, since it uses as much as digits as its factorization.

223308947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 223308947 is about 14943.5252534333. The cubic root of 223308947 is about 606.6926141473.

The spelling of 223308947 in words is "two hundred twenty-three million, three hundred eight thousand, nine hundred forty-seven".