228327287 has 2 divisors, whose sum is σ = 228327288. Its totient is φ = 228327286.

The previous prime is 228327277. The next prime is 228327311. The reversal of 228327287 is 782723822.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228327287 - 2⁴ = 228327271 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 (228327217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114163643 + 114163644.

It is an arithmetic number, because the mean of its divisors is an integer number (114163644).

Almost surely, 2^228327287 is an apocalyptic number.

228327287 is a deficient number, since it is larger than the sum of its proper divisors (1).

228327287 is an equidigital number, since it uses as much as digits as its factorization.

228327287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 150528, while the sum is 41.

The square root of 228327287 is about 15110.5025396246. The cubic root of 228327287 is about 611.2036495592.

It can be divided in two parts, 228 and 327287, that multiplied together give a triangular number (74621436 = T₁₂₂₁₆).

The spelling of 228327287 in words is "two hundred twenty-eight million, three hundred twenty-seven thousand, two hundred eighty-seven".