426000857 has 2 divisors, whose sum is σ = 426000858. Its totient is φ = 426000856.

The previous prime is 426000829. The next prime is 426000899. The reversal of 426000857 is 758000624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 259177801 + 166823056 = 16099^2 + 12916^2 .

It is a cyclic number.

It is not a de Polignac number, because 426000857 - 2¹⁸ = 425738713 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (426000557) 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, 213000428 + 213000429.

It is an arithmetic number, because the mean of its divisors is an integer number (213000429).

Almost surely, 2^426000857 is an apocalyptic number.

It is an amenable number.

426000857 is a deficient number, since it is larger than the sum of its proper divisors (1).

426000857 is an equidigital number, since it uses as much as digits as its factorization.

426000857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 426000857 is about 20639.7882014327. The cubic root of 426000857 is about 752.4370249319.

The spelling of 426000857 in words is "four hundred twenty-six million, eight hundred fifty-seven", and thus it is an aban number.