2097917 has 2 divisors, whose sum is σ = 2097918. Its totient is φ = 2097916.

The previous prime is 2097911. The next prime is 2097941. The reversal of 2097917 is 7197902.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1125721 + 972196 = 1061^2 + 986^2 .

It is a cyclic number.

It is not a de Polignac number, because 2097917 - 2¹⁰ = 2096893 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2097911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1048958 + 1048959.

It is an arithmetic number, because the mean of its divisors is an integer number (1048959).

2^2097917 is an apocalyptic number.

It is an amenable number.

2097917 is a deficient number, since it is larger than the sum of its proper divisors (1).

2097917 is an equidigital number, since it uses as much as digits as its factorization.

2097917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7938, while the sum is 35.

The square root of 2097917 is about 1448.4187930291. The cubic root of 2097917 is about 128.0155620728.

The spelling of 2097917 in words is "two million, ninety-seven thousand, nine hundred seventeen".