18396071 has 2 divisors, whose sum is σ = 18396072. Its totient is φ = 18396070.

The previous prime is 18396013. The next prime is 18396083. The reversal of 18396071 is 17069381.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18396071 - 2¹⁴ = 18379687 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18396011) 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, 9198035 + 9198036.

It is an arithmetic number, because the mean of its divisors is an integer number (9198036).

Almost surely, 2^18396071 is an apocalyptic number.

18396071 is a deficient number, since it is larger than the sum of its proper divisors (1).

18396071 is an equidigital number, since it uses as much as digits as its factorization.

18396071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 18396071 is about 4289.0641170307. The cubic root of 18396071 is about 263.9824320648.

The spelling of 18396071 in words is "eighteen million, three hundred ninety-six thousand, seventy-one".