2198117 has 16 divisors (see below), whose sum is σ = 2483712. Its totient is φ = 1935360.

The previous prime is 2198093. The next prime is 2198137. The reversal of 2198117 is 7118912.

It is a cyclic number.

It is not a de Polignac number, because 2198117 - 2¹² = 2194021 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2198117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2198137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22613 + ... + 22709.

It is an arithmetic number, because the mean of its divisors is an integer number (155232).

2^2198117 is an apocalyptic number.

It is an amenable number.

2198117 is a deficient number, since it is larger than the sum of its proper divisors (285595).

2198117 is a wasteful number, since it uses less digits than its factorization.

2198117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188.

The product of its digits is 1008, while the sum is 29.

The square root of 2198117 is about 1482.6048023664. The cubic root of 2198117 is about 130.0220278255.

The spelling of 2198117 in words is "two million, one hundred ninety-eight thousand, one hundred seventeen".