228323089 has 2 divisors, whose sum is σ = 228323090. Its totient is φ = 228323088.

The previous prime is 228323083. The next prime is 228323113. The reversal of 228323089 is 980323822.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 195776064 + 32547025 = 13992^2 + 5705^2 .

It is a cyclic number.

It is not a de Polignac number, because 228323089 - 2¹³ = 228314897 is a prime.

It is a super-3 number, since 3×228323089³ (a number of 26 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (228323083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114161544 + 114161545.

It is an arithmetic number, because the mean of its divisors is an integer number (114161545).

Almost surely, 2^228323089 is an apocalyptic number.

It is an amenable number.

228323089 is a deficient number, since it is larger than the sum of its proper divisors (1).

228323089 is an equidigital number, since it uses as much as digits as its factorization.

228323089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 228323089 is about 15110.3636289799. The cubic root of 228323089 is about 611.1999036956.

It can be divided in two parts, 22832 and 3089, that added together give a square (25921 = 161²).

The spelling of 228323089 in words is "two hundred twenty-eight million, three hundred twenty-three thousand, eighty-nine".