4228489 has 2 divisors, whose sum is σ = 4228490. Its totient is φ = 4228488.

The previous prime is 4228487. The next prime is 4228501. The reversal of 4228489 is 9848224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3404025 + 824464 = 1845^2 + 908^2 .

It is a cyclic number.

It is not a de Polignac number, because 4228489 - 2¹ = 4228487 is a prime.

Together with 4228487, it forms a pair of twin primes.

It is a d-powerful number, because it can be written as 4⁴ + 2¹⁵ + 2²² + 8² + 4⁵ + 8² + 9 .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4228487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2114244 + 2114245.

It is an arithmetic number, because the mean of its divisors is an integer number (2114245).

Almost surely, 2^4228489 is an apocalyptic number.

It is an amenable number.

4228489 is a deficient number, since it is larger than the sum of its proper divisors (1).

4228489 is an equidigital number, since it uses as much as digits as its factorization.

4228489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36864, while the sum is 37.

The square root of 4228489 is about 2056.3290106401. The cubic root of 4228489 is about 161.7068442082.

It can be divided in two parts, 422 and 8489, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 4228489 in words is "four million, two hundred twenty-eight thousand, four hundred eighty-nine".