228606277 has 2 divisors, whose sum is σ = 228606278. Its totient is φ = 228606276.

The previous prime is 228606263. The next prime is 228606281. The reversal of 228606277 is 772606822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 222875041 + 5731236 = 14929^2 + 2394^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228606277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228606227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114303138 + 114303139.

It is an arithmetic number, because the mean of its divisors is an integer number (114303139).

Almost surely, 2^228606277 is an apocalyptic number.

It is an amenable number.

228606277 is a deficient number, since it is larger than the sum of its proper divisors (1).

228606277 is an equidigital number, since it uses as much as digits as its factorization.

228606277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 228606277 is about 15119.7313798890. The cubic root of 228606277 is about 611.4524887053.

The spelling of 228606277 in words is "two hundred twenty-eight million, six hundred six thousand, two hundred seventy-seven".