2198947 has 8 divisors (see below), whose sum is σ = 2284256. Its totient is φ = 2115072.

The previous prime is 2198909. The next prime is 2198981. The reversal of 2198947 is 7498912.

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 2198947 - 2¹⁵ = 2166179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2198347) 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, 3523 + ... + 4099.

It is an arithmetic number, because the mean of its divisors is an integer number (285532).

2^2198947 is an apocalyptic number.

2198947 is a deficient number, since it is larger than the sum of its proper divisors (85309).

2198947 is a wasteful number, since it uses less digits than its factorization.

2198947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717.

The product of its digits is 36288, while the sum is 40.

The square root of 2198947 is about 1482.8846887064. The cubic root of 2198947 is about 130.0383910283.

The spelling of 2198947 in words is "two million, one hundred ninety-eight thousand, nine hundred forty-seven".