228234887 has 2 divisors, whose sum is σ = 228234888. Its totient is φ = 228234886.

The previous prime is 228234883. The next prime is 228234931. The reversal of 228234887 is 788432822.

It is an a-pointer prime, because the next prime (228234931) can be obtained adding 228234887 to its sum of digits (44).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228234887 - 2² = 228234883 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 (228234883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114117443 + 114117444.

It is an arithmetic number, because the mean of its divisors is an integer number (114117444).

Almost surely, 2^228234887 is an apocalyptic number.

228234887 is a deficient number, since it is larger than the sum of its proper divisors (1).

228234887 is an equidigital number, since it uses as much as digits as its factorization.

228234887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 344064, while the sum is 44.

The square root of 228234887 is about 15107.4447541601. Note that the first 3 decimals coincide. The cubic root of 228234887 is about 611.1211906792.

The spelling of 228234887 in words is "two hundred twenty-eight million, two hundred thirty-four thousand, eight hundred eighty-seven".