16724117 has 2 divisors, whose sum is σ = 16724118. Its totient is φ = 16724116.

The previous prime is 16724089. The next prime is 16724129. The reversal of 16724117 is 71142761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10504081 + 6220036 = 3241^2 + 2494^2 .

It is an emirp because it is prime and its reverse (71142761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16724117 - 2⁶ = 16724053 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16724117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16724137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8362058 + 8362059.

It is an arithmetic number, because the mean of its divisors is an integer number (8362059).

Almost surely, 2^16724117 is an apocalyptic number.

It is an amenable number.

16724117 is a deficient number, since it is larger than the sum of its proper divisors (1).

16724117 is an equidigital number, since it uses as much as digits as its factorization.

16724117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2352, while the sum is 29.

The square root of 16724117 is about 4089.5130516970. The cubic root of 16724117 is about 255.7296390929.

Adding to 16724117 its reverse (71142761), we get a palindrome (87866878).

The spelling of 16724117 in words is "sixteen million, seven hundred twenty-four thousand, one hundred seventeen".