2199108947 has 16 divisors (see below), whose sum is σ = 2644012800. Its totient is φ = 1789095840.

The previous prime is 2199108929. The next prime is 2199108973. The reversal of 2199108947 is 7498019912.

2199108947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2199108947 - 2¹² = 2199104851 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2199108895 and 2199108904.

It is not an unprimeable number, because it can be changed into a prime (2199108997) 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, 79829 + ... + 103782.

It is an arithmetic number, because the mean of its divisors is an integer number (165250800).

Almost surely, 2^2199108947 is an apocalyptic number.

2199108947 is a deficient number, since it is larger than the sum of its proper divisors (444903853).

2199108947 is a wasteful number, since it uses less digits than its factorization.

2199108947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183706.

The product of its (nonzero) digits is 326592, while the sum is 50.

The square root of 2199108947 is about 46894.6579793477. The cubic root of 2199108947 is about 1300.4158328505.

The spelling of 2199108947 in words is "two billion, one hundred ninety-nine million, one hundred eight thousand, nine hundred forty-seven".