260765 has 4 divisors (see below), whose sum is σ = 312924. Its totient is φ = 208608.

The previous prime is 260761. The next prime is 260773. The reversal of 260765 is 567062.

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 196249 + 64516 = 443^2 + 254^2 .

It is a cyclic number.

It is not a de Polignac number, because 260765 - 2² = 260761 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260761) 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, 26072 + ... + 26081.

It is an arithmetic number, because the mean of its divisors is an integer number (78231).

2²⁶⁰⁷⁶⁵ is an apocalyptic number.

It is an amenable number.

260765 is a deficient number, since it is larger than the sum of its proper divisors (52159).

260765 is an equidigital number, since it uses as much as digits as its factorization.

260765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52158.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 260765 is about 510.6515445977. The cubic root of 260765 is about 63.8875793332.

The spelling of 260765 in words is "two hundred sixty thousand, seven hundred sixty-five".