2198669 has 8 divisors (see below), whose sum is σ = 2423520. Its totient is φ = 1978000.

The previous prime is 2198663. The next prime is 2198671. The reversal of 2198669 is 9668912.

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 2198669 - 2⁴ = 2198653 is a prime.

It is a super-2 number, since 2×2198669² = 9668290743122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2198663) 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, 122 + ... + 2100.

It is an arithmetic number, because the mean of its divisors is an integer number (302940).

2^2198669 is an apocalyptic number.

It is an amenable number.

2198669 is a deficient number, since it is larger than the sum of its proper divisors (224851).

2198669 is a wasteful number, since it uses less digits than its factorization.

2198669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2091.

The product of its digits is 46656, while the sum is 41.

The square root of 2198669 is about 1482.7909495273. The cubic root of 2198669 is about 130.0329107997.

It can be divided in two parts, 219 and 8669, that added together give a palindrome (8888).

The spelling of 2198669 in words is "two million, one hundred ninety-eight thousand, six hundred sixty-nine".