18706027 has 2 divisors, whose sum is σ = 18706028. Its totient is φ = 18706026.

The previous prime is 18706007. The next prime is 18706049. The reversal of 18706027 is 72060781.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18706027 - 2¹⁹ = 18181739 is a prime.

It is a super-2 number, since 2×18706027² = 699830892249458, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18706027.

It is not a weakly prime, because it can be changed into another prime (18706007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9353013 + 9353014.

It is an arithmetic number, because the mean of its divisors is an integer number (9353014).

Almost surely, 2^18706027 is an apocalyptic number.

18706027 is a deficient number, since it is larger than the sum of its proper divisors (1).

18706027 is an equidigital number, since it uses as much as digits as its factorization.

18706027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 18706027 is about 4325.0464737388. The cubic root of 18706027 is about 265.4567984627.

The spelling of 18706027 in words is "eighteen million, seven hundred six thousand, twenty-seven".