223999903 has 2 divisors, whose sum is σ = 223999904. Its totient is φ = 223999902.

The previous prime is 223999883. The next prime is 224000047. The reversal of 223999903 is 309999322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 223999903 - 2²⁵ = 190445471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223999003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111999951 + 111999952.

It is an arithmetic number, because the mean of its divisors is an integer number (111999952).

Almost surely, 2^223999903 is an apocalyptic number.

223999903 is a deficient number, since it is larger than the sum of its proper divisors (1).

223999903 is an equidigital number, since it uses as much as digits as its factorization.

223999903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 236196, while the sum is 46.

The square root of 223999903 is about 14966.6263065529. The cubic root of 223999903 is about 607.3177067117.

The spelling of 223999903 in words is "two hundred twenty-three million, nine hundred ninety-nine thousand, nine hundred three".