18080983 has 4 divisors (see below), whose sum is σ = 18109080. Its totient is φ = 18052888.

The previous prime is 18080977. The next prime is 18080999. The reversal of 18080983 is 38908081.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18080983 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 (18080903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13060 + ... + 14377.

It is an arithmetic number, because the mean of its divisors is an integer number (4527270).

Almost surely, 2^18080983 is an apocalyptic number.

18080983 is a deficient number, since it is larger than the sum of its proper divisors (28097).

18080983 is an equidigital number, since it uses as much as digits as its factorization.

18080983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28096.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 18080983 is about 4252.1739145994. The cubic root of 18080983 is about 262.4665801747.

The spelling of 18080983 in words is "eighteen million, eighty thousand, nine hundred eighty-three".