18872027 has 2 divisors, whose sum is σ = 18872028. Its totient is φ = 18872026.

The previous prime is 18872003. The next prime is 18872041. The reversal of 18872027 is 72027881.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18872027 - 2⁸ = 18871771 is a prime.

It is not a weakly prime, because it can be changed into another prime (18872527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9436013 + 9436014.

It is an arithmetic number, because the mean of its divisors is an integer number (9436014).

Almost surely, 2^18872027 is an apocalyptic number.

18872027 is a deficient number, since it is larger than the sum of its proper divisors (1).

18872027 is an equidigital number, since it uses as much as digits as its factorization.

18872027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12544, while the sum is 35.

The square root of 18872027 is about 4344.1946319197. The cubic root of 18872027 is about 266.2397211458.

The spelling of 18872027 in words is "eighteen million, eight hundred seventy-two thousand, twenty-seven".