10008391 has 2 divisors, whose sum is σ = 10008392. Its totient is φ = 10008390.

The previous prime is 10008371. The next prime is 10008403. The reversal of 10008391 is 19380001.

It is a strong prime.

It is an emirp because it is prime and its reverse (19380001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10008391 - 2⁷ = 10008263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10008311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5004195 + 5004196.

It is an arithmetic number, because the mean of its divisors is an integer number (5004196).

Almost surely, 2^10008391 is an apocalyptic number.

10008391 is a deficient number, since it is larger than the sum of its proper divisors (1).

10008391 is an equidigital number, since it uses as much as digits as its factorization.

10008391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 10008391 is about 3163.6041155619. The cubic root of 10008391 is about 215.5037116947.

Adding to 10008391 its reverse (19380001), we get a palindrome (29388392).

The spelling of 10008391 in words is "ten million, eight thousand, three hundred ninety-one".