260811 has 6 divisors (see below), whose sum is σ = 376740. Its totient is φ = 173868.

The previous prime is 260809. The next prime is 260849. The reversal of 260811 is 118062.

It is not a de Polignac number, because 260811 - 2¹ = 260809 is a prime.

260811 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 260811.

It is not an unprimeable number, because it can be changed into a prime (260861) 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 5 ways as a sum of consecutive naturals, for example, 14481 + ... + 14498.

It is an arithmetic number, because the mean of its divisors is an integer number (62790).

2²⁶⁰⁸¹¹ is an apocalyptic number.

260811 is a deficient number, since it is larger than the sum of its proper divisors (115929).

260811 is a wasteful number, since it uses less digits than its factorization.

260811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28985 (or 28982 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 260811 is about 510.6965831098. The cubic root of 260811 is about 63.8913357881.

Adding to 260811 its reverse (118062), we get a palindrome (378873).

The spelling of 260811 in words is "two hundred sixty thousand, eight hundred eleven".