2198929 has 4 divisors (see below), whose sum is σ = 2203200. Its totient is φ = 2194660.

The previous prime is 2198909. The next prime is 2198981. The reversal of 2198929 is 9298912.

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 2198929 - 2⁵ = 2198897 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2198891 and 2198900.

It is not an unprimeable number, because it can be changed into a prime (2198909) 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, 1237 + ... + 2434.

It is an arithmetic number, because the mean of its divisors is an integer number (550800).

2^2198929 is an apocalyptic number.

It is an amenable number.

2198929 is a deficient number, since it is larger than the sum of its proper divisors (4271).

2198929 is an equidigital number, since it uses as much as digits as its factorization.

2198929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4270.

The product of its digits is 23328, while the sum is 40.

The square root of 2198929 is about 1482.8786194426. The cubic root of 2198929 is about 130.0380362073.

The spelling of 2198929 in words is "two million, one hundred ninety-eight thousand, nine hundred twenty-nine".