342847 has 2 divisors, whose sum is σ = 342848. Its totient is φ = 342846.

The previous prime is 342841. The next prime is 342863. The reversal of 342847 is 748243.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-342847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342841) 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, 171423 + 171424.

It is an arithmetic number, because the mean of its divisors is an integer number (171424).

2³⁴²⁸⁴⁷ is an apocalyptic number.

342847 is a deficient number, since it is larger than the sum of its proper divisors (1).

342847 is an equidigital number, since it uses as much as digits as its factorization.

342847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 28.

The square root of 342847 is about 585.5313825919. The cubic root of 342847 is about 69.9895902888.

The spelling of 342847 in words is "three hundred forty-two thousand, eight hundred forty-seven".