18236327 has 2 divisors, whose sum is σ = 18236328. Its totient is φ = 18236326.

The previous prime is 18236321. The next prime is 18236347. The reversal of 18236327 is 72363281.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18236327 - 2²⁴ = 1459111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18236293 and 18236302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18236321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9118163 + 9118164.

It is an arithmetic number, because the mean of its divisors is an integer number (9118164).

Almost surely, 2^18236327 is an apocalyptic number.

18236327 is a deficient number, since it is larger than the sum of its proper divisors (1).

18236327 is an equidigital number, since it uses as much as digits as its factorization.

18236327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 32.

The square root of 18236327 is about 4270.4012692018. The cubic root of 18236327 is about 263.2161042412.

It can be divided in two parts, 1 and 8236327, that added together give a palindrome (8236328).

The spelling of 18236327 in words is "eighteen million, two hundred thirty-six thousand, three hundred twenty-seven".