228364811 has 2 divisors, whose sum is σ = 228364812. Its totient is φ = 228364810.

The previous prime is 228364783. The next prime is 228364813. The reversal of 228364811 is 118463822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228364811 - 2¹⁴ = 228348427 is a prime.

Together with 228364813, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (228364813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114182405 + 114182406.

It is an arithmetic number, because the mean of its divisors is an integer number (114182406).

Almost surely, 2^228364811 is an apocalyptic number.

228364811 is a deficient number, since it is larger than the sum of its proper divisors (1).

228364811 is an equidigital number, since it uses as much as digits as its factorization.

228364811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18432, while the sum is 35.

The square root of 228364811 is about 15111.7441415609. The cubic root of 228364811 is about 611.2371300800.

The spelling of 228364811 in words is "two hundred twenty-eight million, three hundred sixty-four thousand, eight hundred eleven".