18806701 has 2 divisors, whose sum is σ = 18806702. Its totient is φ = 18806700.

The previous prime is 18806687. The next prime is 18806717. The reversal of 18806701 is 10760881.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15920100 + 2886601 = 3990^2 + 1699^2 .

It is a cyclic number.

It is not a de Polignac number, because 18806701 - 2¹⁹ = 18282413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18806731) 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, 9403350 + 9403351.

It is an arithmetic number, because the mean of its divisors is an integer number (9403351).

Almost surely, 2^18806701 is an apocalyptic number.

It is an amenable number.

18806701 is a deficient number, since it is larger than the sum of its proper divisors (1).

18806701 is an equidigital number, since it uses as much as digits as its factorization.

18806701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 31.

The square root of 18806701 is about 4336.6693440935. The cubic root of 18806701 is about 265.9321674888.

The spelling of 18806701 in words is "eighteen million, eight hundred six thousand, seven hundred one".