260663017 has 2 divisors, whose sum is σ = 260663018. Its totient is φ = 260663016.

The previous prime is 260663009. The next prime is 260663041. The reversal of 260663017 is 710366062.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 249766416 + 10896601 = 15804^2 + 3301^2 .

It is a cyclic number.

It is not a de Polignac number, because 260663017 - 2³ = 260663009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 260663017.

It is not a weakly prime, because it can be changed into another prime (260663087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130331508 + 130331509.

It is an arithmetic number, because the mean of its divisors is an integer number (130331509).

Almost surely, 2^260663017 is an apocalyptic number.

It is an amenable number.

260663017 is a deficient number, since it is larger than the sum of its proper divisors (1).

260663017 is an equidigital number, since it uses as much as digits as its factorization.

260663017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 260663017 is about 16145.0616908081. The cubic root of 260663017 is about 638.7924961546.

The spelling of 260663017 in words is "two hundred sixty million, six hundred sixty-three thousand, seventeen".