2099170 has 8 divisors (see below), whose sum is σ = 3778524. Its totient is φ = 839664.

The previous prime is 2099147. The next prime is 2099179. The reversal of 2099170 is 719902.

It can be written as a sum of positive squares in 2 ways, for example, as 1766241 + 332929 = 1329^2 + 577^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2099179) 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, 104949 + ... + 104968.

2^2099170 is an apocalyptic number.

2099170 is a deficient number, since it is larger than the sum of its proper divisors (1679354).

2099170 is a wasteful number, since it uses less digits than its factorization.

2099170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209924.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 2099170 is about 1448.8512691094. The cubic root of 2099170 is about 128.0410431532.

The spelling of 2099170 in words is "two million, ninety-nine thousand, one hundred seventy".