65717117 has 4 divisors (see below), whose sum is σ = 67837056. Its totient is φ = 63597180.

The previous prime is 65717107. The next prime is 65717123. The reversal of 65717117 is 71171756.

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.

It is a cyclic number.

It is not a de Polignac number, because 65717117 - 2¹⁶ = 65651581 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 (65717107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1059923 + ... + 1059984.

It is an arithmetic number, because the mean of its divisors is an integer number (16959264).

Almost surely, 2^65717117 is an apocalyptic number.

It is an amenable number.

65717117 is a deficient number, since it is larger than the sum of its proper divisors (2119939).

65717117 is a wasteful number, since it uses less digits than its factorization.

65717117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2119938.

The product of its digits is 10290, while the sum is 35.

The square root of 65717117 is about 8106.6094638881. The cubic root of 65717117 is about 403.5458024206.

The spelling of 65717117 in words is "sixty-five million, seven hundred seventeen thousand, one hundred seventeen".