228208027 has 2 divisors, whose sum is σ = 228208028. Its totient is φ = 228208026.

The previous prime is 228208021. The next prime is 228208037. The reversal of 228208027 is 720802822.

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-228208027 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228208027.

It is not a weakly prime, because it can be changed into another prime (228208021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114104013 + 114104014.

It is an arithmetic number, because the mean of its divisors is an integer number (114104014).

Almost surely, 2^228208027 is an apocalyptic number.

228208027 is a deficient number, since it is larger than the sum of its proper divisors (1).

228208027 is an equidigital number, since it uses as much as digits as its factorization.

228208027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 228208027 is about 15106.5557623172. Note that the first 3 decimals coincide. The cubic root of 228208027 is about 611.0972163146.

The spelling of 228208027 in words is "two hundred twenty-eight million, two hundred eight thousand, twenty-seven".