18084461 has 2 divisors, whose sum is σ = 18084462. Its totient is φ = 18084460.

The previous prime is 18084421. The next prime is 18084497. The reversal of 18084461 is 16448081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16152361 + 1932100 = 4019^2 + 1390^2 .

It is a cyclic number.

It is not a de Polignac number, because 18084461 - 2⁶ = 18084397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18084401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9042230 + 9042231.

It is an arithmetic number, because the mean of its divisors is an integer number (9042231).

Almost surely, 2^18084461 is an apocalyptic number.

It is an amenable number.

18084461 is a deficient number, since it is larger than the sum of its proper divisors (1).

18084461 is an equidigital number, since it uses as much as digits as its factorization.

18084461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 18084461 is about 4252.5828622144. The cubic root of 18084461 is about 262.4834081728.

The spelling of 18084461 in words is "eighteen million, eighty-four thousand, four hundred sixty-one".