381347 has 2 divisors, whose sum is σ = 381348. Its totient is φ = 381346.

The previous prime is 381343. The next prime is 381371. The reversal of 381347 is 743183.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 381347 - 2² = 381343 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (381343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190673 + 190674.

It is an arithmetic number, because the mean of its divisors is an integer number (190674).

2³⁸¹³⁴⁷ is an apocalyptic number.

381347 is a deficient number, since it is larger than the sum of its proper divisors (1).

381347 is an equidigital number, since it uses as much as digits as its factorization.

381347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 26.

The square root of 381347 is about 617.5329950699. The cubic root of 381347 is about 72.5170471210.

The spelling of 381347 in words is "three hundred eighty-one thousand, three hundred forty-seven".