2098009 has 2 divisors, whose sum is σ = 2098010. Its totient is φ = 2098008.

The previous prime is 2097989. The next prime is 2098027. The reversal of 2098009 is 9008902.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1968409 + 129600 = 1403^2 + 360^2 .

It is a cyclic number.

It is not a de Polignac number, because 2098009 - 2¹⁵ = 2065241 is a prime.

It is not a weakly prime, because it can be changed into another prime (2098079) 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, 1049004 + 1049005.

It is an arithmetic number, because the mean of its divisors is an integer number (1049005).

2^2098009 is an apocalyptic number.

It is an amenable number.

2098009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2098009 is an equidigital number, since it uses as much as digits as its factorization.

2098009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 2098009 is about 1448.4505514514. The cubic root of 2098009 is about 128.0174333351.

The spelling of 2098009 in words is "two million, ninety-eight thousand, nine".