427282717 has 2 divisors, whose sum is σ = 427282718. Its totient is φ = 427282716.

The previous prime is 427282673. The next prime is 427282729. The reversal of 427282717 is 717282724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 333464121 + 93818596 = 18261^2 + 9686^2 .

It is a cyclic number.

It is not a de Polignac number, because 427282717 - 2²³ = 418894109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 427282717.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427282747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213641358 + 213641359.

It is an arithmetic number, because the mean of its divisors is an integer number (213641359).

Almost surely, 2^427282717 is an apocalyptic number.

It is an amenable number.

427282717 is a deficient number, since it is larger than the sum of its proper divisors (1).

427282717 is an equidigital number, since it uses as much as digits as its factorization.

427282717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 87808, while the sum is 40.

The square root of 427282717 is about 20670.8180051008. The cubic root of 427282717 is about 753.1909773343.

The spelling of 427282717 in words is "four hundred twenty-seven million, two hundred eighty-two thousand, seven hundred seventeen".