223329989 has 2 divisors, whose sum is σ = 223329990. Its totient is φ = 223329988.

The previous prime is 223329973. The next prime is 223330007. The reversal of 223329989 is 989923322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 220284964 + 3045025 = 14842^2 + 1745^2 .

It is a cyclic number.

It is not a de Polignac number, because 223329989 - 2⁴ = 223329973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223329089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111664994 + 111664995.

It is an arithmetic number, because the mean of its divisors is an integer number (111664995).

Almost surely, 2^223329989 is an apocalyptic number.

It is an amenable number.

223329989 is a deficient number, since it is larger than the sum of its proper divisors (1).

223329989 is an equidigital number, since it uses as much as digits as its factorization.

223329989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 419904, while the sum is 47.

The square root of 223329989 is about 14944.2292875879. The cubic root of 223329989 is about 606.7116693997.

The spelling of 223329989 in words is "two hundred twenty-three million, three hundred twenty-nine thousand, nine hundred eighty-nine".