223666097 has 2 divisors, whose sum is σ = 223666098. Its totient is φ = 223666096.

The previous prime is 223666061. The next prime is 223666123. The reversal of 223666097 is 790666322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 165662641 + 58003456 = 12871^2 + 7616^2 .

It is a cyclic number.

It is not a de Polignac number, because 223666097 - 2¹² = 223662001 is a prime.

It is not a weakly prime, because it can be changed into another prime (223666057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111833048 + 111833049.

It is an arithmetic number, because the mean of its divisors is an integer number (111833049).

Almost surely, 2^223666097 is an apocalyptic number.

It is an amenable number.

223666097 is a deficient number, since it is larger than the sum of its proper divisors (1).

223666097 is an equidigital number, since it uses as much as digits as its factorization.

223666097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 41.

The square root of 223666097 is about 14955.4704707007. The cubic root of 223666097 is about 607.0158805703.

The spelling of 223666097 in words is "two hundred twenty-three million, six hundred sixty-six thousand, ninety-seven".