426511117 has 2 divisors, whose sum is σ = 426511118. Its totient is φ = 426511116.

The previous prime is 426511093. The next prime is 426511133. The reversal of 426511117 is 711115624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219899241 + 206611876 = 14829^2 + 14374^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426511117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (426511157) 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, 213255558 + 213255559.

It is an arithmetic number, because the mean of its divisors is an integer number (213255559).

Almost surely, 2^426511117 is an apocalyptic number.

It is an amenable number.

426511117 is a deficient number, since it is larger than the sum of its proper divisors (1).

426511117 is an equidigital number, since it uses as much as digits as its factorization.

426511117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1680, while the sum is 28.

The square root of 426511117 is about 20652.1455786076. The cubic root of 426511117 is about 752.7373258345.

The spelling of 426511117 in words is "four hundred twenty-six million, five hundred eleven thousand, one hundred seventeen".