2859205 has 4 divisors (see below), whose sum is σ = 3431052. Its totient is φ = 2287360.

The previous prime is 2859187. The next prime is 2859211. The reversal of 2859205 is 5029582.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5029582 = 2 ⋅2514791.

It can be written as a sum of positive squares in 2 ways, for example, as 567009 + 2292196 = 753^2 + 1514^2 .

It is not a de Polignac number, because 2859205 - 2⁵ = 2859173 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285916 + ... + 285925.

It is an arithmetic number, because the mean of its divisors is an integer number (857763).

2^2859205 is an apocalyptic number.

It is an amenable number.

2859205 is a deficient number, since it is larger than the sum of its proper divisors (571847).

2859205 is an equidigital number, since it uses as much as digits as its factorization.

2859205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571846.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 2859205 is about 1690.9183895150. The cubic root of 2859205 is about 141.9324713631.

The spelling of 2859205 in words is "two million, eight hundred fifty-nine thousand, two hundred five".