426841391 has 2 divisors, whose sum is σ = 426841392. Its totient is φ = 426841390.

The previous prime is 426841351. The next prime is 426841427. The reversal of 426841391 is 193148624.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 426841391 - 2¹⁰ = 426840367 is a prime.

It is a super-3 number, since 3×426841391³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (426841351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213420695 + 213420696.

It is an arithmetic number, because the mean of its divisors is an integer number (213420696).

Almost surely, 2^426841391 is an apocalyptic number.

426841391 is a deficient number, since it is larger than the sum of its proper divisors (1).

426841391 is an equidigital number, since it uses as much as digits as its factorization.

426841391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 38.

The square root of 426841391 is about 20660.1401495730. The cubic root of 426841391 is about 752.9315727634.

The spelling of 426841391 in words is "four hundred twenty-six million, eight hundred forty-one thousand, three hundred ninety-one".