2195873 has 4 divisors (see below), whose sum is σ = 2325060. Its totient is φ = 2066688.

The previous prime is 2195867. The next prime is 2195891. The reversal of 2195873 is 3785912.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 877969 + 1317904 = 937^2 + 1148^2 .

It is a cyclic number.

It is not a de Polignac number, because 2195873 - 2²⁰ = 1147297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2195863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64568 + ... + 64601.

It is an arithmetic number, because the mean of its divisors is an integer number (581265).

2^2195873 is an apocalyptic number.

It is an amenable number.

2195873 is a deficient number, since it is larger than the sum of its proper divisors (129187).

2195873 is a wasteful number, since it uses less digits than its factorization.

2195873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129186.

The product of its digits is 15120, while the sum is 35.

The square root of 2195873 is about 1481.8478329437. The cubic root of 2195873 is about 129.9777674012.

The spelling of 2195873 in words is "two million, one hundred ninety-five thousand, eight hundred seventy-three".