2820766 has 32 divisors (see below), whose sum is σ = 4898880. Its totient is φ = 1208064.

The previous prime is 2820751. The next prime is 2820773. The reversal of 2820766 is 6670282.

It is a happy number.

2820766 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31650 + ... + 31738.

It is an arithmetic number, because the mean of its divisors is an integer number (153090).

2^2820766 is an apocalyptic number.

2820766 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2820766 is a deficient number, since it is larger than the sum of its proper divisors (2078114).

2820766 is a wasteful number, since it uses less digits than its factorization.

2820766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 2820766 is about 1679.5136200698. The cubic root of 2820766 is about 141.2935553675.

The spelling of 2820766 in words is "two million, eight hundred twenty thousand, seven hundred sixty-six".