426640327 has 2 divisors, whose sum is σ = 426640328. Its totient is φ = 426640326.

The previous prime is 426640309. The next prime is 426640391. The reversal of 426640327 is 723046624.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 426640327 - 2¹⁹ = 426116039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 426640292 and 426640301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (426640727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213320163 + 213320164.

It is an arithmetic number, because the mean of its divisors is an integer number (213320164).

Almost surely, 2^426640327 is an apocalyptic number.

426640327 is a deficient number, since it is larger than the sum of its proper divisors (1).

426640327 is an equidigital number, since it uses as much as digits as its factorization.

426640327 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 34.

The square root of 426640327 is about 20655.2735881179. The cubic root of 426640327 is about 752.8133311765.

The spelling of 426640327 in words is "four hundred twenty-six million, six hundred forty thousand, three hundred twenty-seven".