18073339 has 2 divisors, whose sum is σ = 18073340. Its totient is φ = 18073338.

The previous prime is 18073337. The next prime is 18073343. The reversal of 18073339 is 93337081.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18073339 - 2¹ = 18073337 is a prime.

Together with 18073337, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (18073337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9036669 + 9036670.

It is an arithmetic number, because the mean of its divisors is an integer number (9036670).

Almost surely, 2^18073339 is an apocalyptic number.

18073339 is a deficient number, since it is larger than the sum of its proper divisors (1).

18073339 is an equidigital number, since it uses as much as digits as its factorization.

18073339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 18073339 is about 4251.2749852250. The cubic root of 18073339 is about 262.4295877661.

The spelling of 18073339 in words is "eighteen million, seventy-three thousand, three hundred thirty-nine".