2168497 has 2 divisors, whose sum is σ = 2168498. Its totient is φ = 2168496.

The previous prime is 2168483. The next prime is 2168501. The reversal of 2168497 is 7948612.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1648656 + 519841 = 1284^2 + 721^2 .

It is a cyclic number.

It is not a de Polignac number, because 2168497 - 2¹¹ = 2166449 is a prime.

It is a Chen prime.

2168497 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2168407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1084248 + 1084249.

It is an arithmetic number, because the mean of its divisors is an integer number (1084249).

2^2168497 is an apocalyptic number.

It is an amenable number.

2168497 is a deficient number, since it is larger than the sum of its proper divisors (1).

2168497 is an equidigital number, since it uses as much as digits as its factorization.

2168497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 37.

The square root of 2168497 is about 1472.5817464576. The cubic root of 2168497 is about 129.4353617682.

The spelling of 2168497 in words is "two million, one hundred sixty-eight thousand, four hundred ninety-seven".