223443967 has 2 divisors, whose sum is σ = 223443968. Its totient is φ = 223443966.

The previous prime is 223443959. The next prime is 223444027. The reversal of 223443967 is 769344322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 223443967 - 2³ = 223443959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223443917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111721983 + 111721984.

It is an arithmetic number, because the mean of its divisors is an integer number (111721984).

Almost surely, 2^223443967 is an apocalyptic number.

223443967 is a deficient number, since it is larger than the sum of its proper divisors (1).

223443967 is an equidigital number, since it uses as much as digits as its factorization.

223443967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 40.

The square root of 223443967 is about 14948.0422463947. The cubic root of 223443967 is about 606.8148650077.

The spelling of 223443967 in words is "two hundred twenty-three million, four hundred forty-three thousand, nine hundred sixty-seven".