2098897 has 2 divisors, whose sum is σ = 2098898. Its totient is φ = 2098896.

The previous prime is 2098883. The next prime is 2098903. The reversal of 2098897 is 7988902.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1648656 + 450241 = 1284^2 + 671^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2098897 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (2098867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1049448 + 1049449.

It is an arithmetic number, because the mean of its divisors is an integer number (1049449).

2^2098897 is an apocalyptic number.

It is an amenable number.

2098897 is a deficient number, since it is larger than the sum of its proper divisors (1).

2098897 is an equidigital number, since it uses as much as digits as its factorization.

2098897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 2098897 is about 1448.7570534772. The cubic root of 2098897 is about 128.0354922736.

The spelling of 2098897 in words is "two million, ninety-eight thousand, eight hundred ninety-seven".