223963 has 2 divisors, whose sum is σ = 223964. Its totient is φ = 223962.

The previous prime is 223939. The next prime is 223969. The reversal of 223963 is 369322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 223963 - 2¹³ = 215771 is a prime.

It is a d-powerful number, because it can be written as 2⁵ + 2⁷ + 9⁵ + 3¹⁰ + 6⁶ + 3¹⁰ .

It is a nialpdrome in base 8.

It is not a weakly prime, because it can be changed into another prime (223969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111981 + 111982.

It is an arithmetic number, because the mean of its divisors is an integer number (111982).

2²²³⁹⁶³ is an apocalyptic number.

223963 is a deficient number, since it is larger than the sum of its proper divisors (1).

223963 is an equidigital number, since it uses as much as digits as its factorization.

223963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 25.

The square root of 223963 is about 473.2472926494. The cubic root of 223963 is about 60.7284353905.

The spelling of 223963 in words is "two hundred twenty-three thousand, nine hundred sixty-three".