426779659 has 2 divisors, whose sum is σ = 426779660. Its totient is φ = 426779658.

The previous prime is 426779593. The next prime is 426779677. The reversal of 426779659 is 956977624.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 426779659 - 2¹³ = 426771467 is a prime.

It is not a weakly prime, because it can be changed into another prime (426779699) 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, 213389829 + 213389830.

It is an arithmetic number, because the mean of its divisors is an integer number (213389830).

Almost surely, 2^426779659 is an apocalyptic number.

426779659 is a deficient number, since it is larger than the sum of its proper divisors (1).

426779659 is an equidigital number, since it uses as much as digits as its factorization.

426779659 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5715360, while the sum is 55.

The square root of 426779659 is about 20658.6461076228. The cubic root of 426779659 is about 752.8952733997.

The spelling of 426779659 in words is "four hundred twenty-six million, seven hundred seventy-nine thousand, six hundred fifty-nine".