18461327 has 2 divisors, whose sum is σ = 18461328. Its totient is φ = 18461326.

The previous prime is 18461309. The next prime is 18461329. The reversal of 18461327 is 72316481.

It is a strong prime.

It is an emirp because it is prime and its reverse (72316481) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18461327 - 2⁶ = 18461263 is a prime.

Together with 18461329, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 18461293 and 18461302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18461329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9230663 + 9230664.

It is an arithmetic number, because the mean of its divisors is an integer number (9230664).

Almost surely, 2^18461327 is an apocalyptic number.

18461327 is a deficient number, since it is larger than the sum of its proper divisors (1).

18461327 is an equidigital number, since it uses as much as digits as its factorization.

18461327 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 32.

The square root of 18461327 is about 4296.6646366688. The cubic root of 18461327 is about 264.2942035048.

The spelling of 18461327 in words is "eighteen million, four hundred sixty-one thousand, three hundred twenty-seven".