2198917 has 8 divisors (see below), whose sum is σ = 2560896. Its totient is φ = 1848912.

The previous prime is 2198909. The next prime is 2198981. The reversal of 2198917 is 7198912.

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

It is a cyclic number.

It is not a de Polignac number, because 2198917 - 2³ = 2198909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2198617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2593 + ... + 3334.

It is an arithmetic number, because the mean of its divisors is an integer number (320112).

2^2198917 is an apocalyptic number.

It is an amenable number.

2198917 is a deficient number, since it is larger than the sum of its proper divisors (361979).

2198917 is an equidigital number, since it uses as much as digits as its factorization.

2198917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5987.

The product of its digits is 9072, while the sum is 37.

The square root of 2198917 is about 1482.8745732529. The cubic root of 2198917 is about 130.0377996589.

The spelling of 2198917 in words is "two million, one hundred ninety-eight thousand, nine hundred seventeen".