2098909 has 4 divisors (see below), whose sum is σ = 2130304. Its totient is φ = 2067516.

The previous prime is 2098907. The next prime is 2098927. The reversal of 2098909 is 9098902.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2098909 - 2¹ = 2098907 is a prime.

It is a Duffinian number.

2098909 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2098903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15597 + ... + 15730.

It is an arithmetic number, because the mean of its divisors is an integer number (532576).

2^2098909 is an apocalyptic number.

It is an amenable number.

2098909 is a deficient number, since it is larger than the sum of its proper divisors (31395).

2098909 is an equidigital number, since it uses as much as digits as its factorization.

2098909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31394.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 2098909 is about 1448.7611949524. The cubic root of 2098909 is about 128.0357362784.

The spelling of 2098909 in words is "two million, ninety-eight thousand, nine hundred nine".