223760989 has 2 divisors, whose sum is σ = 223760990. Its totient is φ = 223760988.

The previous prime is 223760983. The next prime is 223761047. The reversal of 223760989 is 989067322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136656100 + 87104889 = 11690^2 + 9333^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223760989 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223760983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111880494 + 111880495.

It is an arithmetic number, because the mean of its divisors is an integer number (111880495).

Almost surely, 2^223760989 is an apocalyptic number.

It is an amenable number.

223760989 is a deficient number, since it is larger than the sum of its proper divisors (1).

223760989 is an equidigital number, since it uses as much as digits as its factorization.

223760989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 223760989 is about 14958.6426189010. The cubic root of 223760989 is about 607.1017120959.

The spelling of 223760989 in words is "two hundred twenty-three million, seven hundred sixty thousand, nine hundred eighty-nine".