2685723 has 4 divisors (see below), whose sum is σ = 3580968. Its totient is φ = 1790480.

The previous prime is 2685703. The next prime is 2685731. The reversal of 2685723 is 3275862.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2685723 - 2⁸ = 2685467 is a prime.

It is a d-powerful number, because it can be written as 2¹⁶ + 6⁵ + 8⁷ + 5⁸ + 7² + 2¹⁶ + 3¹⁰ .

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2685703) 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 3 ways as a sum of consecutive naturals, for example, 447618 + ... + 447623.

It is an arithmetic number, because the mean of its divisors is an integer number (895242).

2^2685723 is an apocalyptic number.

2685723 is a deficient number, since it is larger than the sum of its proper divisors (895245).

2685723 is an equidigital number, since it uses as much as digits as its factorization.

2685723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895244.

The product of its digits is 20160, while the sum is 33.

The square root of 2685723 is about 1638.8175615364. The cubic root of 2685723 is about 139.0017942249.

The spelling of 2685723 in words is "two million, six hundred eighty-five thousand, seven hundred twenty-three".