471769217 has 2 divisors, whose sum is σ = 471769218. Its totient is φ = 471769216.

The previous prime is 471769201. The next prime is 471769219. The reversal of 471769217 is 712967174.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 463497841 + 8271376 = 21529^2 + 2876^2 .

It is a cyclic number.

It is not a de Polignac number, because 471769217 - 2⁴ = 471769201 is a prime.

Together with 471769219, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (471769219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235884608 + 235884609.

It is an arithmetic number, because the mean of its divisors is an integer number (235884609).

Almost surely, 2^471769217 is an apocalyptic number.

It is an amenable number.

471769217 is a deficient number, since it is larger than the sum of its proper divisors (1).

471769217 is an equidigital number, since it uses as much as digits as its factorization.

471769217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 148176, while the sum is 44.

The square root of 471769217 is about 21720.2490087015. The cubic root of 471769217 is about 778.4723645502.

The spelling of 471769217 in words is "four hundred seventy-one million, seven hundred sixty-nine thousand, two hundred seventeen".