7117109 has 2 divisors, whose sum is σ = 7117110. Its totient is φ = 7117108.

The previous prime is 7117087. The next prime is 7117129. The reversal of 7117109 is 9017117.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7102225 + 14884 = 2665^2 + 122^2 .

It is an emirp because it is prime and its reverse (9017117) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7117109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7117129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3558554 + 3558555.

It is an arithmetic number, because the mean of its divisors is an integer number (3558555).

Almost surely, 2^7117109 is an apocalyptic number.

It is an amenable number.

7117109 is a deficient number, since it is larger than the sum of its proper divisors (1).

7117109 is an equidigital number, since it uses as much as digits as its factorization.

7117109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 441, while the sum is 26.

The square root of 7117109 is about 2667.7910337956. The cubic root of 7117109 is about 192.3539928435.

The spelling of 7117109 in words is "seven million, one hundred seventeen thousand, one hundred nine".