426084689 has 2 divisors, whose sum is σ = 426084690. Its totient is φ = 426084688.

The previous prime is 426084667. The next prime is 426084697. The reversal of 426084689 is 986480624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 263088400 + 162996289 = 16220^2 + 12767^2 .

It is a cyclic number.

It is not a de Polignac number, because 426084689 - 2²⁴ = 409307473 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (426084389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213042344 + 213042345.

It is an arithmetic number, because the mean of its divisors is an integer number (213042345).

Almost surely, 2^426084689 is an apocalyptic number.

It is an amenable number.

426084689 is a deficient number, since it is larger than the sum of its proper divisors (1).

426084689 is an equidigital number, since it uses as much as digits as its factorization.

426084689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 663552, while the sum is 47.

The square root of 426084689 is about 20641.8189363244. The cubic root of 426084689 is about 752.4863786381.

The spelling of 426084689 in words is "four hundred twenty-six million, eighty-four thousand, six hundred eighty-nine".