471788717 has 2 divisors, whose sum is σ = 471788718. Its totient is φ = 471788716.

The previous prime is 471788687. The next prime is 471788729. The reversal of 471788717 is 717887174.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 380796196 + 90992521 = 19514^2 + 9539^2 .

It is a cyclic number.

It is not a de Polignac number, because 471788717 - 2⁸ = 471788461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (471788797) 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, 235894358 + 235894359.

It is an arithmetic number, because the mean of its divisors is an integer number (235894359).

Almost surely, 2^471788717 is an apocalyptic number.

It is an amenable number.

471788717 is a deficient number, since it is larger than the sum of its proper divisors (1).

471788717 is an equidigital number, since it uses as much as digits as its factorization.

471788717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 614656, while the sum is 50.

The square root of 471788717 is about 21720.6978939444. The cubic root of 471788717 is about 778.4830901348.

The spelling of 471788717 in words is "four hundred seventy-one million, seven hundred eighty-eight thousand, seven hundred seventeen".