228333863 has 2 divisors, whose sum is σ = 228333864. Its totient is φ = 228333862.

The previous prime is 228333803. The next prime is 228333869. The reversal of 228333863 is 368333822.

It is a happy number.

228333863 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 is a cyclic number.

It is not a de Polignac number, because 228333863 - 2⁸ = 228333607 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 (228333869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114166931 + 114166932.

It is an arithmetic number, because the mean of its divisors is an integer number (114166932).

Almost surely, 2^228333863 is an apocalyptic number.

228333863 is a deficient number, since it is larger than the sum of its proper divisors (1).

228333863 is an equidigital number, since it uses as much as digits as its factorization.

228333863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 38.

The square root of 228333863 is about 15110.7201350564. The cubic root of 228333863 is about 611.2095172133.

The spelling of 228333863 in words is "two hundred twenty-eight million, three hundred thirty-three thousand, eight hundred sixty-three".