18905027 has 2 divisors, whose sum is σ = 18905028. Its totient is φ = 18905026.

The previous prime is 18905021. The next prime is 18905053. The reversal of 18905027 is 72050981.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18905027 - 2⁸ = 18904771 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18904984 and 18905002.

It is not a weakly prime, because it can be changed into another prime (18905021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9452513 + 9452514.

It is an arithmetic number, because the mean of its divisors is an integer number (9452514).

Almost surely, 2^18905027 is an apocalyptic number.

18905027 is a deficient number, since it is larger than the sum of its proper divisors (1).

18905027 is an equidigital number, since it uses as much as digits as its factorization.

18905027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 18905027 is about 4347.9911453452. The cubic root of 18905027 is about 266.3948147966.

The spelling of 18905027 in words is "eighteen million, nine hundred five thousand, twenty-seven".