4226389 has 2 divisors, whose sum is σ = 4226390. Its totient is φ = 4226388.

The previous prime is 4226377. The next prime is 4226401. The reversal of 4226389 is 9836224.

It is a balanced prime because it is at equal distance from previous prime (4226377) and next prime (4226401).

It can be written as a sum of positive squares in only one way, i.e., 4223025 + 3364 = 2055^2 + 58^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4226389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4226309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2113194 + 2113195.

It is an arithmetic number, because the mean of its divisors is an integer number (2113195).

Almost surely, 2^4226389 is an apocalyptic number.

It is an amenable number.

4226389 is a deficient number, since it is larger than the sum of its proper divisors (1).

4226389 is an equidigital number, since it uses as much as digits as its factorization.

4226389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 34.

The square root of 4226389 is about 2055.8183285495. The cubic root of 4226389 is about 161.6800702152.

The spelling of 4226389 in words is "four million, two hundred twenty-six thousand, three hundred eighty-nine".