2053685 has 16 divisors (see below), whose sum is σ = 2684016. Its totient is φ = 1502208.

The previous prime is 2053673. The next prime is 2053699. The reversal of 2053685 is 5863502.

It can be written as a sum of positive squares in 8 ways, for example, as 54289 + 1999396 = 233^2 + 1414^2 .

It is a cyclic number.

It is not a de Polignac number, because 2053685 - 2⁶ = 2053621 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2819 + ... + 3471.

It is an arithmetic number, because the mean of its divisors is an integer number (167751).

2^2053685 is an apocalyptic number.

It is an amenable number.

2053685 is a deficient number, since it is larger than the sum of its proper divisors (630331).

2053685 is a wasteful number, since it uses less digits than its factorization.

2053685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 2053685 is about 1433.0683863654. The cubic root of 2053685 is about 127.1094804809.

The spelling of 2053685 in words is "two million, fifty-three thousand, six hundred eighty-five".