223422929 has 2 divisors, whose sum is σ = 223422930. Its totient is φ = 223422928.

The previous prime is 223422917. The next prime is 223422973. The reversal of 223422929 is 929224322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211760704 + 11662225 = 14552^2 + 3415^2 .

It is a cyclic number.

It is not a de Polignac number, because 223422929 - 2²⁰ = 222374353 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (223422029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111711464 + 111711465.

It is an arithmetic number, because the mean of its divisors is an integer number (111711465).

Almost surely, 2^223422929 is an apocalyptic number.

It is an amenable number.

223422929 is a deficient number, since it is larger than the sum of its proper divisors (1).

223422929 is an equidigital number, since it uses as much as digits as its factorization.

223422929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 35.

The square root of 223422929 is about 14947.3385256373. The cubic root of 223422929 is about 606.7958198574.

The spelling of 223422929 in words is "two hundred twenty-three million, four hundred twenty-two thousand, nine hundred twenty-nine".