18422827 has 2 divisors, whose sum is σ = 18422828. Its totient is φ = 18422826.

The previous prime is 18422797. The next prime is 18422861. The reversal of 18422827 is 72822481.

It is an a-pointer prime, because the next prime (18422861) can be obtained adding 18422827 to its sum of digits (34).

It is a weak prime.

It is an emirp because it is prime and its reverse (72822481) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18422827 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18422792 and 18422801.

It is not a weakly prime, because it can be changed into another prime (18462827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9211413 + 9211414.

It is an arithmetic number, because the mean of its divisors is an integer number (9211414).

Almost surely, 2^18422827 is an apocalyptic number.

18422827 is a deficient number, since it is larger than the sum of its proper divisors (1).

18422827 is an equidigital number, since it uses as much as digits as its factorization.

18422827 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14336, while the sum is 34.

The square root of 18422827 is about 4292.1820790829. The cubic root of 18422827 is about 264.1103523586.

The spelling of 18422827 in words is "eighteen million, four hundred twenty-two thousand, eight hundred twenty-seven".