2098865 has 8 divisors (see below), whose sum is σ = 2628288. Its totient is φ = 1606000.

The previous prime is 2098861. The next prime is 2098867. The reversal of 2098865 is 5688902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2098865 - 2² = 2098861 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2098861) 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 in 7 ways as a sum of consecutive naturals, for example, 9011 + ... + 9240.

It is an arithmetic number, because the mean of its divisors is an integer number (328536).

2^2098865 is an apocalyptic number.

It is an amenable number.

2098865 is a deficient number, since it is larger than the sum of its proper divisors (529423).

2098865 is a wasteful number, since it uses less digits than its factorization.

2098865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18279.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 2098865 is about 1448.7460094854. The cubic root of 2098865 is about 128.0348415895.

The spelling of 2098865 in words is "two million, ninety-eight thousand, eight hundred sixty-five".