2106617 has 2 divisors, whose sum is σ = 2106618. Its totient is φ = 2106616.

The previous prime is 2106563. The next prime is 2106619. The reversal of 2106617 is 7166012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2062096 + 44521 = 1436^2 + 211^2 .

It is a cyclic number.

It is not a de Polignac number, because 2106617 - 2⁸ = 2106361 is a prime.

Together with 2106619, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2106592 and 2106601.

It is not a weakly prime, because it can be changed into another prime (2106619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1053308 + 1053309.

It is an arithmetic number, because the mean of its divisors is an integer number (1053309).

2^2106617 is an apocalyptic number.

It is an amenable number.

2106617 is a deficient number, since it is larger than the sum of its proper divisors (1).

2106617 is an equidigital number, since it uses as much as digits as its factorization.

2106617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 2106617 is about 1451.4189608793. The cubic root of 2106617 is about 128.1922769419.

The spelling of 2106617 in words is "two million, one hundred six thousand, six hundred seventeen".