18229327 has 2 divisors, whose sum is σ = 18229328. Its totient is φ = 18229326.

The previous prime is 18229261. The next prime is 18229331. The reversal of 18229327 is 72392281.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18229327 - 2¹⁵ = 18196559 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18229292 and 18229301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18229027) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9114663 + 9114664.

It is an arithmetic number, because the mean of its divisors is an integer number (9114664).

Almost surely, 2^18229327 is an apocalyptic number.

18229327 is a deficient number, since it is larger than the sum of its proper divisors (1).

18229327 is an equidigital number, since it uses as much as digits as its factorization.

18229327 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 34.

The square root of 18229327 is about 4269.5815954259. The cubic root of 18229327 is about 263.1824214986.

The spelling of 18229327 in words is "eighteen million, two hundred twenty-nine thousand, three hundred twenty-seven".