343771 has 2 divisors, whose sum is σ = 343772. Its totient is φ = 343770.

The previous prime is 343769. The next prime is 343787. The reversal of 343771 is 177343.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 343771 - 2¹ = 343769 is a prime.

Together with 343769, it forms a pair of twin primes.

It is equal to p₂₉₄₈₂ and since 343771 and 29482 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (341771) 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, 171885 + 171886.

It is an arithmetic number, because the mean of its divisors is an integer number (171886).

2³⁴³⁷⁷¹ is an apocalyptic number.

343771 is a deficient number, since it is larger than the sum of its proper divisors (1).

343771 is an equidigital number, since it uses as much as digits as its factorization.

343771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1764, while the sum is 25.

The square root of 343771 is about 586.3198785646. The cubic root of 343771 is about 70.0524097301.

The spelling of 343771 in words is "three hundred forty-three thousand, seven hundred seventy-one", and thus it is an iban number.