16806117 has 4 divisors (see below), whose sum is σ = 22408160. Its totient is φ = 11204076.

The previous prime is 16806071. The next prime is 16806173. The reversal of 16806117 is 71160861.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 16806117 - 2¹² = 16802021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16806817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2801017 + ... + 2801022.

It is an arithmetic number, because the mean of its divisors is an integer number (5602040).

Almost surely, 2^16806117 is an apocalyptic number.

It is an amenable number.

16806117 is a deficient number, since it is larger than the sum of its proper divisors (5602043).

16806117 is an equidigital number, since it uses as much as digits as its factorization.

16806117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5602042.

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 16806117 is about 4099.5264360655. The cubic root of 16806117 is about 256.1469137603.

Adding to 16806117 its reverse (71160861), we get a palindrome (87966978).

The spelling of 16806117 in words is "sixteen million, eight hundred six thousand, one hundred seventeen".