260917 has 4 divisors (see below), whose sum is σ = 263340. Its totient is φ = 258496.

The previous prime is 260893. The next prime is 260921. The reversal of 260917 is 719062.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 93636 + 167281 = 306^2 + 409^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-260917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 260891 and 260900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260987) 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 in 3 ways as a sum of consecutive naturals, for example, 1042 + ... + 1267.

It is an arithmetic number, because the mean of its divisors is an integer number (65835).

2²⁶⁰⁹¹⁷ is an apocalyptic number.

It is an amenable number.

260917 is a deficient number, since it is larger than the sum of its proper divisors (2423).

260917 is a wasteful number, since it uses less digits than its factorization.

260917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2422.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 260917 is about 510.8003523883. The cubic root of 260917 is about 63.8999902854.

Adding to 260917 its reverse (719062), we get a palindrome (979979).

The spelling of 260917 in words is "two hundred sixty thousand, nine hundred seventeen".