223494443 has 2 divisors, whose sum is σ = 223494444. Its totient is φ = 223494442.

The previous prime is 223494413. The next prime is 223494457. The reversal of 223494443 is 344494322.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223494443 is a prime.

It is not a weakly prime, because it can be changed into another prime (223494413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111747221 + 111747222.

It is an arithmetic number, because the mean of its divisors is an integer number (111747222).

Almost surely, 2^223494443 is an apocalyptic number.

223494443 is a deficient number, since it is larger than the sum of its proper divisors (1).

223494443 is an equidigital number, since it uses as much as digits as its factorization.

223494443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 35.

The square root of 223494443 is about 14949.7305326885. The cubic root of 223494443 is about 606.8605547339.

The spelling of 223494443 in words is "two hundred twenty-three million, four hundred ninety-four thousand, four hundred forty-three".