228005773 has 2 divisors, whose sum is σ = 228005774. Its totient is φ = 228005772.

The previous prime is 228005753. The next prime is 228005777. The reversal of 228005773 is 377500822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 227949604 + 56169 = 15098^2 + 237^2 .

It is a cyclic number.

It is not a de Polignac number, because 228005773 - 2⁵ = 228005741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228005777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114002886 + 114002887.

It is an arithmetic number, because the mean of its divisors is an integer number (114002887).

Almost surely, 2^228005773 is an apocalyptic number.

It is an amenable number.

228005773 is a deficient number, since it is larger than the sum of its proper divisors (1).

228005773 is an equidigital number, since it uses as much as digits as its factorization.

228005773 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 228005773 is about 15099.8600324639. The cubic root of 228005773 is about 610.9166305140.

The spelling of 228005773 in words is "two hundred twenty-eight million, five thousand, seven hundred seventy-three".