2682805 has 4 divisors (see below), whose sum is σ = 3219372. Its totient is φ = 2146240.

The previous prime is 2682803. The next prime is 2682829. The reversal of 2682805 is 5082862.

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 1684804 + 998001 = 1298^2 + 999^2 .

It is not a de Polignac number, because 2682805 - 2¹ = 2682803 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

2682805 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2682803) 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, 268276 + ... + 268285.

It is an arithmetic number, because the mean of its divisors is an integer number (804843).

2^2682805 is an apocalyptic number.

It is an amenable number.

2682805 is a deficient number, since it is larger than the sum of its proper divisors (536567).

2682805 is an equidigital number, since it uses as much as digits as its factorization.

2682805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536566.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 2682805 is about 1637.9270435523. The cubic root of 2682805 is about 138.9514348220.

The spelling of 2682805 in words is "two million, six hundred eighty-two thousand, eight hundred five".