223888237 has 2 divisors, whose sum is σ = 223888238. Its totient is φ = 223888236.

The previous prime is 223888211. The next prime is 223888241. The reversal of 223888237 is 732888322.

223888237 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 218477961 + 5410276 = 14781^2 + 2326^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223888237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 223888193 and 223888202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223888337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111944118 + 111944119.

It is an arithmetic number, because the mean of its divisors is an integer number (111944119).

Almost surely, 2^223888237 is an apocalyptic number.

It is an amenable number.

223888237 is a deficient number, since it is larger than the sum of its proper divisors (1).

223888237 is an equidigital number, since it uses as much as digits as its factorization.

223888237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 258048, while the sum is 43.

The square root of 223888237 is about 14962.8953414772. The cubic root of 223888237 is about 607.2167721274.

It can be divided in two parts, 22388 and 8237, that added together give a square (30625 = 175²).

The spelling of 223888237 in words is "two hundred twenty-three million, eight hundred eighty-eight thousand, two hundred thirty-seven".