8103391 has 2 divisors, whose sum is σ = 8103392. Its totient is φ = 8103390.

The previous prime is 8103353. The next prime is 8103397. The reversal of 8103391 is 1933018.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8103391 - 2⁹ = 8102879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8103397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4051695 + 4051696.

It is an arithmetic number, because the mean of its divisors is an integer number (4051696).

Almost surely, 2^8103391 is an apocalyptic number.

8103391 is a deficient number, since it is larger than the sum of its proper divisors (1).

8103391 is an equidigital number, since it uses as much as digits as its factorization.

8103391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 8103391 is about 2846.6455697891. The cubic root of 8103391 is about 200.8579063880.

The spelling of 8103391 in words is "eight million, one hundred three thousand, three hundred ninety-one".