343281047 has 2 divisors, whose sum is σ = 343281048. Its totient is φ = 343281046.

The previous prime is 343281041. The next prime is 343281061. The reversal of 343281047 is 740182343.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 343281047 - 2⁴ = 343281031 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343281041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171640523 + 171640524.

It is an arithmetic number, because the mean of its divisors is an integer number (171640524).

Almost surely, 2^343281047 is an apocalyptic number.

343281047 is a deficient number, since it is larger than the sum of its proper divisors (1).

343281047 is an equidigital number, since it uses as much as digits as its factorization.

343281047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 343281047 is about 18527.8451796209. The cubic root of 343281047 is about 700.1911362405.

The spelling of 343281047 in words is "three hundred forty-three million, two hundred eighty-one thousand, forty-seven".