228848489 has 2 divisors, whose sum is σ = 228848490. Its totient is φ = 228848488.

The previous prime is 228848467. The next prime is 228848491. The reversal of 228848489 is 984848822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 202920025 + 25928464 = 14245^2 + 5092^2 .

It is a cyclic number.

It is not a de Polignac number, because 228848489 - 2¹² = 228844393 is a prime.

Together with 228848491, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228848489.

It is not a weakly prime, because it can be changed into another prime (228848419) 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, 114424244 + 114424245.

It is an arithmetic number, because the mean of its divisors is an integer number (114424245).

Almost surely, 2^228848489 is an apocalyptic number.

It is an amenable number.

228848489 is a deficient number, since it is larger than the sum of its proper divisors (1).

228848489 is an equidigital number, since it uses as much as digits as its factorization.

228848489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2359296, while the sum is 53.

The square root of 228848489 is about 15127.7390577707. The cubic root of 228848489 is about 611.6683603745.

The spelling of 228848489 in words is "two hundred twenty-eight million, eight hundred forty-eight thousand, four hundred eighty-nine".