223443397 has 2 divisors, whose sum is σ = 223443398. Its totient is φ = 223443396.

The previous prime is 223443383. The next prime is 223443421. The reversal of 223443397 is 793344322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 207331201 + 16112196 = 14399^2 + 4014^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223443397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223443197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111721698 + 111721699.

It is an arithmetic number, because the mean of its divisors is an integer number (111721699).

Almost surely, 2^223443397 is an apocalyptic number.

It is an amenable number.

223443397 is a deficient number, since it is larger than the sum of its proper divisors (1).

223443397 is an equidigital number, since it uses as much as digits as its factorization.

223443397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 37.

The square root of 223443397 is about 14948.0231803406. The cubic root of 223443397 is about 606.8143490174.

The spelling of 223443397 in words is "two hundred twenty-three million, four hundred forty-three thousand, three hundred ninety-seven".