228606263 has 2 divisors, whose sum is σ = 228606264. Its totient is φ = 228606262.

The previous prime is 228606253. The next prime is 228606277. The reversal of 228606263 is 362606822.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228606263 is a prime.

It is a Sophie Germain 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 (228606253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114303131 + 114303132.

It is an arithmetic number, because the mean of its divisors is an integer number (114303132).

Almost surely, 2^228606263 is an apocalyptic number.

228606263 is a deficient number, since it is larger than the sum of its proper divisors (1).

228606263 is an equidigital number, since it uses as much as digits as its factorization.

228606263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 228606263 is about 15119.7309169178. The cubic root of 228606263 is about 611.4524762234.

The spelling of 228606263 in words is "two hundred twenty-eight million, six hundred six thousand, two hundred sixty-three".