228773 has 2 divisors, whose sum is σ = 228774. Its totient is φ = 228772.

The previous prime is 228757. The next prime is 228793. The reversal of 228773 is 377822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 228484 + 289 = 478^2 + 17^2 .

It is a cyclic number.

It is not a de Polignac number, because 228773 - 2⁴ = 228757 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114386 + 114387.

It is an arithmetic number, because the mean of its divisors is an integer number (114387).

2²²⁸⁷⁷³ is an apocalyptic number.

It is an amenable number.

228773 is a deficient number, since it is larger than the sum of its proper divisors (1).

228773 is an equidigital number, since it uses as much as digits as its factorization.

228773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4704, while the sum is 29.

The square root of 228773 is about 478.3022057235. The cubic root of 228773 is about 61.1601097079.

It can be divided in two parts, 228 and 773, that added together give a palindrome (1001).

The spelling of 228773 in words is "two hundred twenty-eight thousand, seven hundred seventy-three".