18706411 has 2 divisors, whose sum is σ = 18706412. Its totient is φ = 18706410.

The previous prime is 18706397. The next prime is 18706427. The reversal of 18706411 is 11460781.

18706411 is nontrivially palindromic in base 15.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18706411 - 2⁵ = 18706379 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18706411.

It is not a weakly prime, because it can be changed into another prime (18706111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9353205 + 9353206.

It is an arithmetic number, because the mean of its divisors is an integer number (9353206).

Almost surely, 2^18706411 is an apocalyptic number.

18706411 is a deficient number, since it is larger than the sum of its proper divisors (1).

18706411 is an equidigital number, since it uses as much as digits as its factorization.

18706411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 18706411 is about 4325.0908660975. The cubic root of 18706411 is about 265.4586148954.

It can be divided in two parts, 1870 and 6411, that added together give a square (8281 = 91²).

The spelling of 18706411 in words is "eighteen million, seven hundred six thousand, four hundred eleven".