18800027 has 2 divisors, whose sum is σ = 18800028. Its totient is φ = 18800026.

The previous prime is 18800003. The next prime is 18800051. The reversal of 18800027 is 72000881.

It is a balanced prime because it is at equal distance from previous prime (18800003) and next prime (18800051).

It is a cyclic number.

It is not a de Polignac number, because 18800027 - 2¹⁶ = 18734491 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 18799969 and 18800005.

It is not a weakly prime, because it can be changed into another prime (18800077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9400013 + 9400014.

It is an arithmetic number, because the mean of its divisors is an integer number (9400014).

Almost surely, 2^18800027 is an apocalyptic number.

18800027 is a deficient number, since it is larger than the sum of its proper divisors (1).

18800027 is an equidigital number, since it uses as much as digits as its factorization.

18800027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 18800027 is about 4335.8997912775. The cubic root of 18800027 is about 265.9007063397.

The spelling of 18800027 in words is "eighteen million, eight hundred thousand, twenty-seven".