18059983 has 2 divisors, whose sum is σ = 18059984. Its totient is φ = 18059982.

The previous prime is 18059963. The next prime is 18060017. The reversal of 18059983 is 38995081.

It is a weak prime.

It is an emirp because it is prime and its reverse (38995081) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18059983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18059903) 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, 9029991 + 9029992.

It is an arithmetic number, because the mean of its divisors is an integer number (9029992).

Almost surely, 2^18059983 is an apocalyptic number.

18059983 is a deficient number, since it is larger than the sum of its proper divisors (1).

18059983 is an equidigital number, since it uses as much as digits as its factorization.

18059983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 18059983 is about 4249.7038720363. The cubic root of 18059983 is about 262.3649276366.

The spelling of 18059983 in words is "eighteen million, fifty-nine thousand, nine hundred eighty-three".