67871 has 4 divisors (see below), whose sum is σ = 68952. Its totient is φ = 66792.

The previous prime is 67867. The next prime is 67883. The reversal of 67871 is 17876.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 67871 - 2² = 67867 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 440 + ... + 573.

It is an arithmetic number, because the mean of its divisors is an integer number (17238).

2⁶⁷⁸⁷¹ is an apocalyptic number.

67871 is a deficient number, since it is larger than the sum of its proper divisors (1081).

67871 is a wasteful number, since it uses less digits than its factorization.

67871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080.

The product of its digits is 2352, while the sum is 29.

The square root of 67871 is about 260.5206325802. The cubic root of 67871 is about 40.7907242145.

The spelling of 67871 in words is "sixty-seven thousand, eight hundred seventy-one".