12005347 has 2 divisors, whose sum is σ = 12005348. Its totient is φ = 12005346.

The previous prime is 12005341. The next prime is 12005363. The reversal of 12005347 is 74350021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12005347 - 2⁷ = 12005219 is a prime.

It is not a weakly prime, because it can be changed into another prime (12005341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6002673 + 6002674.

It is an arithmetic number, because the mean of its divisors is an integer number (6002674).

Almost surely, 2^12005347 is an apocalyptic number.

12005347 is a deficient number, since it is larger than the sum of its proper divisors (1).

12005347 is an equidigital number, since it uses as much as digits as its factorization.

12005347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 12005347 is about 3464.8733021569. The cubic root of 12005347 is about 228.9768478338.

Adding to 12005347 its reverse (74350021), we get a palindrome (86355368).

The spelling of 12005347 in words is "twelve million, five thousand, three hundred forty-seven".