260691 has 8 divisors (see below), whose sum is σ = 351120. Its totient is φ = 172032.

The previous prime is 260677. The next prime is 260713. The reversal of 260691 is 196062.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 260691 - 2⁹ = 260179 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 260691.

It is not an unprimeable number, because it can be changed into a prime (260651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46 + ... + 723.

It is an arithmetic number, because the mean of its divisors is an integer number (43890).

2²⁶⁰⁶⁹¹ is an apocalyptic number.

260691 is a deficient number, since it is larger than the sum of its proper divisors (90429).

260691 is a wasteful number, since it uses less digits than its factorization.

260691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 260691 is about 510.5790830028. The cubic root of 260691 is about 63.8815354136.

The spelling of 260691 in words is "two hundred sixty thousand, six hundred ninety-one".