426783047 has 2 divisors, whose sum is σ = 426783048. Its totient is φ = 426783046.

The previous prime is 426782969. The next prime is 426783061. The reversal of 426783047 is 740387624.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 426783047 - 2⁸ = 426782791 is a prime.

It is equal to p_22686269 and since 426783047 and 22686269 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 426782995 and 426783013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (426783067) 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, 213391523 + 213391524.

It is an arithmetic number, because the mean of its divisors is an integer number (213391524).

Almost surely, 2^426783047 is an apocalyptic number.

426783047 is a deficient number, since it is larger than the sum of its proper divisors (1).

426783047 is an equidigital number, since it uses as much as digits as its factorization.

426783047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 225792, while the sum is 41.

The square root of 426783047 is about 20658.7281070254. The cubic root of 426783047 is about 752.8972656865.

The spelling of 426783047 in words is "four hundred twenty-six million, seven hundred eighty-three thousand, forty-seven".