11681347 has 2 divisors, whose sum is σ = 11681348. Its totient is φ = 11681346.

The previous prime is 11681323. The next prime is 11681353. The reversal of 11681347 is 74318611.

11681347 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11681347 - 2¹¹ = 11679299 is a prime.

It is not a weakly prime, because it can be changed into another prime (11682347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5840673 + 5840674.

It is an arithmetic number, because the mean of its divisors is an integer number (5840674).

Almost surely, 2^11681347 is an apocalyptic number.

11681347 is a deficient number, since it is larger than the sum of its proper divisors (1).

11681347 is an equidigital number, since it uses as much as digits as its factorization.

11681347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 31.

The square root of 11681347 is about 3417.7985604772. The cubic root of 11681347 is about 226.8981605065.

Adding to 11681347 its reverse (74318611), we get a palindrome (85999958).

The spelling of 11681347 in words is "eleven million, six hundred eighty-one thousand, three hundred forty-seven".