2857853 has 4 divisors (see below), whose sum is σ = 3025980. Its totient is φ = 2689728.

The previous prime is 2857849. The next prime is 2857861. The reversal of 2857853 is 3587582.

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 2679769 + 178084 = 1637^2 + 422^2 .

It is a cyclic number.

It is not a de Polignac number, because 2857853 - 2² = 2857849 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2857453) 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, 84038 + ... + 84071.

It is an arithmetic number, because the mean of its divisors is an integer number (756495).

2^2857853 is an apocalyptic number.

It is an amenable number.

2857853 is a deficient number, since it is larger than the sum of its proper divisors (168127).

2857853 is a wasteful number, since it uses less digits than its factorization.

2857853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168126.

The product of its digits is 67200, while the sum is 38.

The square root of 2857853 is about 1690.5185594959. The cubic root of 2857853 is about 141.9100965007.

The spelling of 2857853 in words is "two million, eight hundred fifty-seven thousand, eight hundred fifty-three".