18804983 has 8 divisors (see below), whose sum is σ = 19245600. Its totient is φ = 18367648.

The previous prime is 18804977. The next prime is 18804997. The reversal of 18804983 is 38940881.

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

It is a cyclic number.

It is not a de Polignac number, because 18804983 - 2⁴ = 18804967 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18804983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18804913) 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, 13598 + ... + 14916.

It is an arithmetic number, because the mean of its divisors is an integer number (2405700).

Almost surely, 2^18804983 is an apocalyptic number.

18804983 is a deficient number, since it is larger than the sum of its proper divisors (440617).

18804983 is a wasteful number, since it uses less digits than its factorization.

18804983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641.

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 18804983 is about 4336.4712612907. The cubic root of 18804983 is about 265.9240695707.

The spelling of 18804983 in words is "eighteen million, eight hundred four thousand, nine hundred eighty-three".