18328983 has 8 divisors (see below), whose sum is σ = 24534768. Its totient is φ = 12171264.

The previous prime is 18328979. The next prime is 18328987. The reversal of 18328983 is 38982381.

It is an interprime number because it is at equal distance from previous prime (18328979) and next prime (18328987).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18328983 - 2² = 18328979 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18328987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11116 + ... + 12657.

It is an arithmetic number, because the mean of its divisors is an integer number (3066846).

Almost surely, 2^18328983 is an apocalyptic number.

18328983 is a deficient number, since it is larger than the sum of its proper divisors (6205785).

18328983 is a wasteful number, since it uses less digits than its factorization.

18328983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24033.

The product of its digits is 82944, while the sum is 42.

The square root of 18328983 is about 4281.2361532623. The cubic root of 18328983 is about 263.6611383521.

The spelling of 18328983 in words is "eighteen million, three hundred twenty-eight thousand, nine hundred eighty-three".