426089 has 2 divisors, whose sum is σ = 426090. Its totient is φ = 426088.

The previous prime is 426077. The next prime is 426091. The reversal of 426089 is 980624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 350464 + 75625 = 592^2 + 275^2 .

It is a cyclic number.

It is not a de Polignac number, because 426089 - 2⁴ = 426073 is a prime.

It is a Sophie Germain prime.

Together with 426091, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 426089.

It is not a weakly prime, because it can be changed into another prime (426389) 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, 213044 + 213045.

It is an arithmetic number, because the mean of its divisors is an integer number (213045).

2⁴²⁶⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

426089 is a deficient number, since it is larger than the sum of its proper divisors (1).

426089 is an equidigital number, since it uses as much as digits as its factorization.

426089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 426089 is about 652.7549310423. The cubic root of 426089 is about 75.2488916442.

The spelling of 426089 in words is "four hundred twenty-six thousand, eighty-nine".