260779 has 4 divisors (see below), whose sum is σ = 264160. Its totient is φ = 257400.

The previous prime is 260773. The next prime is 260791. The reversal of 260779 is 977062.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 260779 - 2⁵ = 260747 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 260779.

It is not an unprimeable number, because it can be changed into a prime (260773) 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, 1572 + ... + 1729.

It is an arithmetic number, because the mean of its divisors is an integer number (66040).

2²⁶⁰⁷⁷⁹ is an apocalyptic number.

260779 is a deficient number, since it is larger than the sum of its proper divisors (3381).

260779 is an equidigital number, since it uses as much as digits as its factorization.

260779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3380.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 260779 is about 510.6652523914. The cubic root of 260779 is about 63.8887226489. Note that the first 3 decimals are identical.

The spelling of 260779 in words is "two hundred sixty thousand, seven hundred seventy-nine".