8165903 has 2 divisors, whose sum is σ = 8165904. Its totient is φ = 8165902.

The previous prime is 8165881. The next prime is 8165909. The reversal of 8165903 is 3095618.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8165903 - 2¹² = 8161807 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8165903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8165909) 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, 4082951 + 4082952.

It is an arithmetic number, because the mean of its divisors is an integer number (4082952).

Almost surely, 2^8165903 is an apocalyptic number.

8165903 is a deficient number, since it is larger than the sum of its proper divisors (1).

8165903 is an equidigital number, since it uses as much as digits as its factorization.

8165903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 8165903 is about 2857.6044162900. The cubic root of 8165903 is about 201.3730767288.

The spelling of 8165903 in words is "eight million, one hundred sixty-five thousand, nine hundred three".