260987 has 2 divisors, whose sum is σ = 260988. Its totient is φ = 260986.

The previous prime is 260983. The next prime is 260999. The reversal of 260987 is 789062.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 260987 - 2² = 260983 is a prime.

It is a super-3 number, since 3×260987³ = 53330773239974409, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (260983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130493 + 130494.

It is an arithmetic number, because the mean of its divisors is an integer number (130494).

2²⁶⁰⁹⁸⁷ is an apocalyptic number.

260987 is a deficient number, since it is larger than the sum of its proper divisors (1).

260987 is an equidigital number, since it uses as much as digits as its factorization.

260987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 260987 is about 510.8688677146. The cubic root of 260987 is about 63.9057042345.

The spelling of 260987 in words is "two hundred sixty thousand, nine hundred eighty-seven".