426971 has 2 divisors, whose sum is σ = 426972. Its totient is φ = 426970.

The previous prime is 426941. The next prime is 426973. The reversal of 426971 is 179624.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 426971 - 2¹⁴ = 410587 is a prime.

Together with 426973, it forms a pair of twin primes.

It is a Chen prime.

It is a d-powerful number, because it can be written as 4⁹ + 2⁹ + 9 + 6⁶ + 7⁶ + 1 .

It is not a weakly prime, because it can be changed into another prime (426973) 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, 213485 + 213486.

It is an arithmetic number, because the mean of its divisors is an integer number (213486).

2⁴²⁶⁹⁷¹ is an apocalyptic number.

426971 is a deficient number, since it is larger than the sum of its proper divisors (1).

426971 is an equidigital number, since it uses as much as digits as its factorization.

426971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 29.

The square root of 426971 is about 653.4301798968. The cubic root of 426971 is about 75.3007773459.

The spelling of 426971 in words is "four hundred twenty-six thousand, nine hundred seventy-one".