16717117 has 4 divisors (see below), whose sum is σ = 16819840. Its totient is φ = 16614396.

The previous prime is 16717109. The next prime is 16717139. The reversal of 16717117 is 71171761.

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, and also an emirpimes, since its reverse is a distinct semiprime: 71171761 = 853 ⋅83437.

It is a cyclic number.

It is not a de Polignac number, because 16717117 - 2³ = 16717109 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 (16787117) 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, 51117 + ... + 51442.

It is an arithmetic number, because the mean of its divisors is an integer number (4204960).

Almost surely, 2^16717117 is an apocalyptic number.

It is an amenable number.

16717117 is a deficient number, since it is larger than the sum of its proper divisors (102723).

16717117 is a wasteful number, since it uses less digits than its factorization.

16717117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102722.

The product of its digits is 2058, while the sum is 31.

The square root of 16717117 is about 4088.6571145059. The cubic root of 16717117 is about 255.6939549512.

Adding to 16717117 its reverse (71171761), we get a palindrome (87888878).

The spelling of 16717117 in words is "sixteen million, seven hundred seventeen thousand, one hundred seventeen".