18098983 has 12 divisors (see below), whose sum is σ = 21127392. Its totient is φ = 15459360.

The previous prime is 18098923. The next prime is 18099007. The reversal of 18098983 is 38989081.

It is not a de Polignac number, because 18098983 - 2⁹ = 18098471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18098923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20691 + ... + 21547.

It is an arithmetic number, because the mean of its divisors is an integer number (1760616).

Almost surely, 2^18098983 is an apocalyptic number.

18098983 is a deficient number, since it is larger than the sum of its proper divisors (3028409).

18098983 is an equidigital number, since it uses as much as digits as its factorization.

18098983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302 (or 1295 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 46.

The square root of 18098983 is about 4254.2899525068. The cubic root of 18098983 is about 262.5536482942.

The spelling of 18098983 in words is "eighteen million, ninety-eight thousand, nine hundred eighty-three".