18107983 has 2 divisors, whose sum is σ = 18107984. Its totient is φ = 18107982.

The previous prime is 18107981. The next prime is 18107993. The reversal of 18107983 is 38970181.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18107983 - 2¹ = 18107981 is a prime.

Together with 18107981, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18107981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9053991 + 9053992.

It is an arithmetic number, because the mean of its divisors is an integer number (9053992).

Almost surely, 2^18107983 is an apocalyptic number.

18107983 is a deficient number, since it is larger than the sum of its proper divisors (1).

18107983 is an equidigital number, since it uses as much as digits as its factorization.

18107983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 18107983 is about 4255.3475768731. The cubic root of 18107983 is about 262.5971607071.

The spelling of 18107983 in words is "eighteen million, one hundred seven thousand, nine hundred eighty-three".