2198798 has 8 divisors (see below), whose sum is σ = 3769392. Its totient is φ = 942336.

The previous prime is 2198783. The next prime is 2198827. The reversal of 2198798 is 8978912.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78515 + ... + 78542.

It is an arithmetic number, because the mean of its divisors is an integer number (471174).

2^2198798 is an apocalyptic number.

2198798 is a deficient number, since it is larger than the sum of its proper divisors (1570594).

2198798 is a wasteful number, since it uses less digits than its factorization.

2198798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157066.

The product of its digits is 72576, while the sum is 44.

The square root of 2198798 is about 1482.8344479408. The cubic root of 2198798 is about 130.0354538409.

The spelling of 2198798 in words is "two million, one hundred ninety-eight thousand, seven hundred ninety-eight".