20600117 has 2 divisors, whose sum is σ = 20600118. Its totient is φ = 20600116.

The previous prime is 20600113. The next prime is 20600137. The reversal of 20600117 is 71100602.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14092516 + 6507601 = 3754^2 + 2551^2 .

It is a cyclic number.

It is not a de Polignac number, because 20600117 - 2² = 20600113 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 20600095 and 20600104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20600113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10300058 + 10300059.

It is an arithmetic number, because the mean of its divisors is an integer number (10300059).

Almost surely, 2^20600117 is an apocalyptic number.

It is an amenable number.

20600117 is a deficient number, since it is larger than the sum of its proper divisors (1).

20600117 is an equidigital number, since it uses as much as digits as its factorization.

20600117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 20600117 is about 4538.7351762358. The cubic root of 20600117 is about 274.1299976313.

Adding to 20600117 its reverse (71100602), we get a palindrome (91700719).

The spelling of 20600117 in words is "twenty million, six hundred thousand, one hundred seventeen".