381342347 has 2 divisors, whose sum is σ = 381342348. Its totient is φ = 381342346.

The previous prime is 381342341. The next prime is 381342371. The reversal of 381342347 is 743243183.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 381342347 - 2¹⁶ = 381276811 is a prime.

It is not a weakly prime, because it can be changed into another prime (381342341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190671173 + 190671174.

It is an arithmetic number, because the mean of its divisors is an integer number (190671174).

Almost surely, 2^381342347 is an apocalyptic number.

381342347 is a deficient number, since it is larger than the sum of its proper divisors (1).

381342347 is an equidigital number, since it uses as much as digits as its factorization.

381342347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 35.

The square root of 381342347 is about 19527.9888109349. The cubic root of 381342347 is about 725.1675218119.

The spelling of 381342347 in words is "three hundred eighty-one million, three hundred forty-two thousand, three hundred forty-seven".