426776369 has 2 divisors, whose sum is σ = 426776370. Its totient is φ = 426776368.

The previous prime is 426776353. The next prime is 426776447. The reversal of 426776369 is 963677624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 250019344 + 176757025 = 15812^2 + 13295^2 .

It is a cyclic number.

It is not a de Polignac number, because 426776369 - 2⁴ = 426776353 is a prime.

It is a super-2 number, since 2×426776369² = 364276138273648322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (426779369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213388184 + 213388185.

It is an arithmetic number, because the mean of its divisors is an integer number (213388185).

Almost surely, 2^426776369 is an apocalyptic number.

It is an amenable number.

426776369 is a deficient number, since it is larger than the sum of its proper divisors (1).

426776369 is an equidigital number, since it uses as much as digits as its factorization.

426776369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2286144, while the sum is 50.

The square root of 426776369 is about 20658.5664797923. The cubic root of 426776369 is about 752.8933387309.

The spelling of 426776369 in words is "four hundred twenty-six million, seven hundred seventy-six thousand, three hundred sixty-nine".