487172017 has 2 divisors, whose sum is σ = 487172018. Its totient is φ = 487172016.

The previous prime is 487171987. The next prime is 487172029. The reversal of 487172017 is 710271784.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 411116176 + 76055841 = 20276^2 + 8721^2 .

It is a cyclic number.

It is not a de Polignac number, because 487172017 - 2⁷ = 487171889 is a prime.

It is not a weakly prime, because it can be changed into another prime (487172117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243586008 + 243586009.

It is an arithmetic number, because the mean of its divisors is an integer number (243586009).

Almost surely, 2^487172017 is an apocalyptic number.

It is an amenable number.

487172017 is a deficient number, since it is larger than the sum of its proper divisors (1).

487172017 is an equidigital number, since it uses as much as digits as its factorization.

487172017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21952, while the sum is 37.

The square root of 487172017 is about 22071.9735637754. The cubic root of 487172017 is about 786.8539177880.

The spelling of 487172017 in words is "four hundred eighty-seven million, one hundred seventy-two thousand, seventeen".