258871 has 2 divisors, whose sum is σ = 258872. Its totient is φ = 258870.

The previous prime is 258847. The next prime is 258887. The reversal of 258871 is 178852.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 258871 - 2⁷ = 258743 is a prime.

It is a Chen prime.

258871 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (258971) 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 as a sum of consecutive naturals, namely, 129435 + 129436.

It is an arithmetic number, because the mean of its divisors is an integer number (129436).

2²⁵⁸⁸⁷¹ is an apocalyptic number.

258871 is a deficient number, since it is larger than the sum of its proper divisors (1).

258871 is an equidigital number, since it uses as much as digits as its factorization.

258871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4480, while the sum is 31.

The square root of 258871 is about 508.7936713443. The cubic root of 258871 is about 63.7325262887.

Subtracting from 258871 its sum of digits (31), we obtain a triangular number (258840 = T₇₁₉).

The spelling of 258871 in words is "two hundred fifty-eight thousand, eight hundred seventy-one".