2820706 has 16 divisors (see below), whose sum is σ = 4881024. Its totient is φ = 1197504.

The previous prime is 2820703. The next prime is 2820707. The reversal of 2820706 is 6070282.

It is not an unprimeable number, because it can be changed into a prime (2820703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 691 + ... + 2473.

It is an arithmetic number, because the mean of its divisors is an integer number (305064).

2^2820706 is an apocalyptic number.

2820706 is a deficient number, since it is larger than the sum of its proper divisors (2060318).

2820706 is a wasteful number, since it uses less digits than its factorization.

2820706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1905.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 2820706 is about 1679.4957576606. The cubic root of 2820706 is about 141.2925535505.

Adding to 2820706 its reverse (6070282), we get a palindrome (8890988).

The spelling of 2820706 in words is "two million, eight hundred twenty thousand, seven hundred six".