228582773 has 4 divisors (see below), whose sum is σ = 228625248. Its totient is φ = 228540300.

The previous prime is 228582769. The next prime is 228582791. The reversal of 228582773 is 377285822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 377285822 = 2 ⋅188642911.

It is a cyclic number.

It is not a de Polignac number, because 228582773 - 2² = 228582769 is a prime.

It is a super-2 number, since 2×228582773² = 104500168224739058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228582733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11753 + ... + 24398.

It is an arithmetic number, because the mean of its divisors is an integer number (57156312).

Almost surely, 2^228582773 is an apocalyptic number.

It is an amenable number.

228582773 is a deficient number, since it is larger than the sum of its proper divisors (42475).

228582773 is an equidigital number, since it uses as much as digits as its factorization.

228582773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42474.

The product of its digits is 376320, while the sum is 44.

The square root of 228582773 is about 15118.9540974235. The cubic root of 228582773 is about 611.4315326289.

It can be divided in two parts, 2285 and 82773, that added together give a palindrome (85058).

The spelling of 228582773 in words is "two hundred twenty-eight million, five hundred eighty-two thousand, seven hundred seventy-three".