2098836809 has 2 divisors, whose sum is σ = 2098836810. Its totient is φ = 2098836808.

The previous prime is 2098836799. The next prime is 2098836827. The reversal of 2098836809 is 9086388902.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1819278409 + 279558400 = 42653^2 + 16720^2 .

It is a cyclic number.

It is not a de Polignac number, because 2098836809 - 2⁴ = 2098836793 is a prime.

It is not a weakly prime, because it can be changed into another prime (2098836829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1049418404 + 1049418405.

It is an arithmetic number, because the mean of its divisors is an integer number (1049418405).

Almost surely, 2^2098836809 is an apocalyptic number.

It is an amenable number.

2098836809 is a deficient number, since it is larger than the sum of its proper divisors (1).

2098836809 is an equidigital number, since it uses as much as digits as its factorization.

2098836809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1492992, while the sum is 53.

The square root of 2098836809 is about 45813.0637373228. The cubic root of 2098836809 is about 1280.3426835166.

The spelling of 2098836809 in words is "two billion, ninety-eight million, eight hundred thirty-six thousand, eight hundred nine".