260687 has 8 divisors (see below), whose sum is σ = 301056. Its totient is φ = 221112.

The previous prime is 260677. The next prime is 260713. The reversal of 260687 is 786062.

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

It is a cyclic number.

It is not a de Polignac number, because 260687 - 2⁴ = 260671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260647) 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 7 ways as a sum of consecutive naturals, for example, 1058 + ... + 1280.

It is an arithmetic number, because the mean of its divisors is an integer number (37632).

2²⁶⁰⁶⁸⁷ is an apocalyptic number.

260687 is a deficient number, since it is larger than the sum of its proper divisors (40369).

260687 is a wasteful number, since it uses less digits than its factorization.

260687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 260687 is about 510.5751658669. The cubic root of 260687 is about 63.8812086826.

The spelling of 260687 in words is "two hundred sixty thousand, six hundred eighty-seven".