17072117 has 2 divisors, whose sum is σ = 17072118. Its totient is φ = 17072116.

The previous prime is 17072093. The next prime is 17072123. The reversal of 17072117 is 71127071.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13942756 + 3129361 = 3734^2 + 1769^2 .

It is an emirp because it is prime and its reverse (71127071) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 17072117 - 2¹² = 17068021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17072177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8536058 + 8536059.

It is an arithmetic number, because the mean of its divisors is an integer number (8536059).

Almost surely, 2^17072117 is an apocalyptic number.

It is an amenable number.

17072117 is a deficient number, since it is larger than the sum of its proper divisors (1).

17072117 is an equidigital number, since it uses as much as digits as its factorization.

17072117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 686, while the sum is 26.

The square root of 17072117 is about 4131.8418411164. The cubic root of 17072117 is about 257.4912404724.

Adding to 17072117 its reverse (71127071), we get a palindrome (88199188).

The spelling of 17072117 in words is "seventeen million, seventy-two thousand, one hundred seventeen".