260729 has 12 divisors (see below), whose sum is σ = 322164. Its totient is φ = 209664.

The previous prime is 260723. The next prime is 260747. The reversal of 260729 is 927062.

It can be written as a sum of positive squares in 2 ways, for example, as 78400 + 182329 = 280^2 + 427^2 .

It is not a de Polignac number, because 260729 - 2⁴ = 260713 is a prime.

It is a super-2 number, since 2×260729² = 135959222882, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 260698 and 260707.

It is not an unprimeable number, because it can be changed into a prime (260723) 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 11 ways as a sum of consecutive naturals, for example, 677 + ... + 989.

It is an arithmetic number, because the mean of its divisors is an integer number (26847).

2²⁶⁰⁷²⁹ is an apocalyptic number.

It is an amenable number.

260729 is a deficient number, since it is larger than the sum of its proper divisors (61435).

260729 is a wasteful number, since it uses less digits than its factorization.

260729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344 (or 337 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 260729 is about 510.6162942954. The cubic root of 260729 is about 63.8846391908.

It can be divided in two parts, 260 and 729, that added together give a palindrome (989).

The spelling of 260729 in words is "two hundred sixty thousand, seven hundred twenty-nine".