426323897 has 2 divisors, whose sum is σ = 426323898. Its totient is φ = 426323896.

The previous prime is 426323851. The next prime is 426323899. The reversal of 426323897 is 798323624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 424195216 + 2128681 = 20596^2 + 1459^2 .

It is a cyclic number.

It is not a de Polignac number, because 426323897 - 2⁸ = 426323641 is a prime.

Together with 426323899, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (426323899) 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, 213161948 + 213161949.

It is an arithmetic number, because the mean of its divisors is an integer number (213161949).

Almost surely, 2^426323897 is an apocalyptic number.

It is an amenable number.

426323897 is a deficient number, since it is larger than the sum of its proper divisors (1).

426323897 is an equidigital number, since it uses as much as digits as its factorization.

426323897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 44.

The square root of 426323897 is about 20647.6123801276. The cubic root of 426323897 is about 752.6271699660.

The spelling of 426323897 in words is "four hundred twenty-six million, three hundred twenty-three thousand, eight hundred ninety-seven".