223442897 has 2 divisors, whose sum is σ = 223442898. Its totient is φ = 223442896.

The previous prime is 223442873. The next prime is 223442929. The reversal of 223442897 is 798244322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 223084096 + 358801 = 14936^2 + 599^2 .

It is a cyclic number.

It is not a de Polignac number, because 223442897 - 2¹⁰ = 223441873 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (223442837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111721448 + 111721449.

It is an arithmetic number, because the mean of its divisors is an integer number (111721449).

Almost surely, 2^223442897 is an apocalyptic number.

It is an amenable number.

223442897 is a deficient number, since it is larger than the sum of its proper divisors (1).

223442897 is an equidigital number, since it uses as much as digits as its factorization.

223442897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 41.

The square root of 223442897 is about 14948.0064557117. The cubic root of 223442897 is about 606.8138963936.

The spelling of 223442897 in words is "two hundred twenty-three million, four hundred forty-two thousand, eight hundred ninety-seven".