228448937 has 2 divisors, whose sum is σ = 228448938. Its totient is φ = 228448936.

The previous prime is 228448919. The next prime is 228448963. The reversal of 228448937 is 739844822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 218330176 + 10118761 = 14776^2 + 3181^2 .

It is a cyclic number.

It is not a de Polignac number, because 228448937 - 2¹² = 228444841 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 228448891 and 228448900.

It is not a weakly prime, because it can be changed into another prime (228448967) 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, 114224468 + 114224469.

It is an arithmetic number, because the mean of its divisors is an integer number (114224469).

Almost surely, 2^228448937 is an apocalyptic number.

It is an amenable number.

228448937 is a deficient number, since it is larger than the sum of its proper divisors (1).

228448937 is an equidigital number, since it uses as much as digits as its factorization.

228448937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 774144, while the sum is 47.

The square root of 228448937 is about 15114.5273495402. The cubic root of 228448937 is about 611.3121775763.

The spelling of 228448937 in words is "two hundred twenty-eight million, four hundred forty-eight thousand, nine hundred thirty-seven".