672560017 has 2 divisors, whose sum is σ = 672560018. Its totient is φ = 672560016.

The previous prime is 672559991. The next prime is 672560029. The reversal of 672560017 is 710065276.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 670602816 + 1957201 = 25896^2 + 1399^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-672560017 is a prime.

It is not a weakly prime, because it can be changed into another prime (672560117) 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, 336280008 + 336280009.

It is an arithmetic number, because the mean of its divisors is an integer number (336280009).

Almost surely, 2^672560017 is an apocalyptic number.

It is an amenable number.

672560017 is a deficient number, since it is larger than the sum of its proper divisors (1).

672560017 is an equidigital number, since it uses as much as digits as its factorization.

672560017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 672560017 is about 25933.7621065668. The cubic root of 672560017 is about 876.1470744246.

The spelling of 672560017 in words is "six hundred seventy-two million, five hundred sixty thousand, seventeen".