426779 has 2 divisors, whose sum is σ = 426780. Its totient is φ = 426778.

The previous prime is 426773. The next prime is 426787. The reversal of 426779 is 977624.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 426779 - 2⁴ = 426763 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 4³ + 2¹⁷ + 7⁶ + 6⁴ + 7⁶ + 9⁵ .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 426779.

It is not a weakly prime, because it can be changed into another prime (426773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213389 + 213390.

It is an arithmetic number, because the mean of its divisors is an integer number (213390).

2⁴²⁶⁷⁷⁹ is an apocalyptic number.

426779 is a deficient number, since it is larger than the sum of its proper divisors (1).

426779 is an equidigital number, since it uses as much as digits as its factorization.

426779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 35.

The square root of 426779 is about 653.2832463794. The cubic root of 426779 is about 75.2894885879.

The spelling of 426779 in words is "four hundred twenty-six thousand, seven hundred seventy-nine".