342871 has 2 divisors, whose sum is σ = 342872. Its totient is φ = 342870.

The previous prime is 342869. The next prime is 342889. The reversal of 342871 is 178243.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 342871 - 2¹ = 342869 is a prime.

Together with 342869, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171435 + 171436.

It is an arithmetic number, because the mean of its divisors is an integer number (171436).

2³⁴²⁸⁷¹ is an apocalyptic number.

342871 is a deficient number, since it is larger than the sum of its proper divisors (1).

342871 is an equidigital number, since it uses as much as digits as its factorization.

342871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1344, while the sum is 25.

The square root of 342871 is about 585.5518764379. The cubic root of 342871 is about 69.9912233894.

The spelling of 342871 in words is "three hundred forty-two thousand, eight hundred seventy-one".