18086827 has 12 divisors (see below), whose sum is σ = 20959128. Its totient is φ = 15425600.

The previous prime is 18086771. The next prime is 18086837. The reversal of 18086827 is 72868081.

It is not a de Polignac number, because 18086827 - 2¹¹ = 18084779 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18086827.

It is not an unprimeable number, because it can be changed into a prime (18086837) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58002 + ... + 58312.

It is an arithmetic number, because the mean of its divisors is an integer number (1746594).

Almost surely, 2^18086827 is an apocalyptic number.

18086827 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

18086827 is a deficient number, since it is larger than the sum of its proper divisors (2872301).

18086827 is an equidigital number, since it uses as much as digits as its factorization.

18086827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 40.

The square root of 18086827 is about 4252.8610369962. The cubic root of 18086827 is about 262.4948546233.

The spelling of 18086827 in words is "eighteen million, eighty-six thousand, eight hundred twenty-seven".