2856853 has 8 divisors (see below), whose sum is σ = 2999808. Its totient is φ = 2715504.

The previous prime is 2856823. The next prime is 2856857. The reversal of 2856853 is 3586582.

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 2856853 - 2¹⁷ = 2725781 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 (2856857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4851 + ... + 5407.

It is an arithmetic number, because the mean of its divisors is an integer number (374976).

2^2856853 is an apocalyptic number.

2856853 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2856853 is a deficient number, since it is larger than the sum of its proper divisors (142955).

2856853 is a wasteful number, since it uses less digits than its factorization.

2856853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803.

The product of its digits is 57600, while the sum is 37.

The square root of 2856853 is about 1690.2227663832. Note that the first 3 decimals coincide. The cubic root of 2856853 is about 141.8935425059.

The spelling of 2856853 in words is "two million, eight hundred fifty-six thousand, eight hundred fifty-three".