16711117 has 4 divisors (see below), whose sum is σ = 16864540. Its totient is φ = 16557696.

The previous prime is 16711111. The next prime is 16711129. The reversal of 16711117 is 71111761.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71111761 = 7 ⋅10158823.

It can be written as a sum of positive squares in 2 ways, for example, as 5225796 + 11485321 = 2286^2 + 3389^2 .

It is a cyclic number.

It is not a de Polignac number, because 16711117 - 2¹⁹ = 16186829 is a prime.

It is a super-2 number, since 2×16711117² = 558522862775378, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16711091 and 16711100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16711111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76548 + ... + 76765.

It is an arithmetic number, because the mean of its divisors is an integer number (4216135).

Almost surely, 2^16711117 is an apocalyptic number.

It is an amenable number.

16711117 is a deficient number, since it is larger than the sum of its proper divisors (153423).

16711117 is a wasteful number, since it uses less digits than its factorization.

16711117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153422.

The product of its digits is 294, while the sum is 25.

The square root of 16711117 is about 4087.9233114138. The cubic root of 16711117 is about 255.6633606146.

Adding to 16711117 its reverse (71111761), we get a palindrome (87822878).

The spelling of 16711117 in words is "sixteen million, seven hundred eleven thousand, one hundred seventeen".