18104027 has 4 divisors (see below), whose sum is σ = 18151680. Its totient is φ = 18056376.

The previous prime is 18103999. The next prime is 18104039. The reversal of 18104027 is 72040181.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72040181 = 577 ⋅124853.

It is a cyclic number.

It is not a de Polignac number, because 18104027 - 2¹⁰ = 18103003 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18103993 and 18104011.

It is not an unprimeable number, because it can be changed into a prime (18104057) 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, 23252 + ... + 24017.

It is an arithmetic number, because the mean of its divisors is an integer number (4537920).

Almost surely, 2^18104027 is an apocalyptic number.

18104027 is a deficient number, since it is larger than the sum of its proper divisors (47653).

18104027 is an equidigital number, since it uses as much as digits as its factorization.

18104027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47652.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 18104027 is about 4254.8827245883. The cubic root of 18104027 is about 262.5780363605.

The spelling of 18104027 in words is "eighteen million, one hundred four thousand, twenty-seven".