2685843 has 6 divisors (see below), whose sum is σ = 3879564. Its totient is φ = 1790556.

The previous prime is 2685827. The next prime is 2685877. The reversal of 2685843 is 3485862.

It is not a de Polignac number, because 2685843 - 2⁴ = 2685827 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2685798 and 2685807.

It is not an unprimeable number, because it can be changed into a prime (2685803) 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 5 ways as a sum of consecutive naturals, for example, 149205 + ... + 149222.

It is an arithmetic number, because the mean of its divisors is an integer number (646594).

2^2685843 is an apocalyptic number.

2685843 is a deficient number, since it is larger than the sum of its proper divisors (1193721).

2685843 is a wasteful number, since it uses less digits than its factorization.

2685843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298433 (or 298430 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 2685843 is about 1638.8541728903. The cubic root of 2685843 is about 139.0038644268.

The spelling of 2685843 in words is "two million, six hundred eighty-five thousand, eight hundred forty-three".