18082727 has 4 divisors (see below), whose sum is σ = 19473720. Its totient is φ = 16691736.

The previous prime is 18082723. The next prime is 18082739. The reversal of 18082727 is 72728081.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72728081 = 2683 ⋅27107.

It is a cyclic number.

It is not a de Polignac number, because 18082727 - 2² = 18082723 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18082721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 695477 + ... + 695502.

It is an arithmetic number, because the mean of its divisors is an integer number (4868430).

Almost surely, 2^18082727 is an apocalyptic number.

18082727 is a deficient number, since it is larger than the sum of its proper divisors (1390993).

18082727 is a wasteful number, since it uses less digits than its factorization.

18082727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1390992.

The product of its (nonzero) digits is 12544, while the sum is 35.

The square root of 18082727 is about 4252.3789812292. The cubic root of 18082727 is about 262.4750186355.

The spelling of 18082727 in words is "eighteen million, eighty-two thousand, seven hundred twenty-seven".