18072327 has 40 divisors (see below), whose sum is σ = 30430064. Its totient is φ = 9483264.

The previous prime is 18072323. The next prime is 18072347. The reversal of 18072327 is 72327081.

It is not a de Polignac number, because 18072327 - 2² = 18072323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18072294 and 18072303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18072323) 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 in 39 ways as a sum of consecutive naturals, for example, 93543 + ... + 93735.

Almost surely, 2^18072327 is an apocalyptic number.

18072327 is a deficient number, since it is larger than the sum of its proper divisors (12357737).

18072327 is an equidigital number, since it uses as much as digits as its factorization.

18072327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 18072327 is about 4251.1559604418. The cubic root of 18072327 is about 262.4246895068.

The spelling of 18072327 in words is "eighteen million, seventy-two thousand, three hundred twenty-seven".