2099705 has 8 divisors (see below), whose sum is σ = 2527872. Its totient is φ = 1674288.

The previous prime is 2099677. The next prime is 2099707. The reversal of 2099705 is 5079902.

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 2099705 - 2⁶ = 2099641 is a prime.

It is a super-2 number, since 2×2099705² = 8817522174050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2099707) 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, 1862 + ... + 2768.

It is an arithmetic number, because the mean of its divisors is an integer number (315984).

2^2099705 is an apocalyptic number.

It is an amenable number.

2099705 is a deficient number, since it is larger than the sum of its proper divisors (428167).

2099705 is an equidigital number, since it uses as much as digits as its factorization.

2099705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1375.

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 2099705 is about 1449.0358863741. The cubic root of 2099705 is about 128.0519198552.

The spelling of 2099705 in words is "two million, ninety-nine thousand, seven hundred five".