2820769 has 8 divisors (see below), whose sum is σ = 3311168. Its totient is φ = 2352240.

The previous prime is 2820751. The next prime is 2820773. The reversal of 2820769 is 9670282.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2820769 - 2⁵ = 2820737 is a prime.

It is a super-2 number, since 2×2820769² = 15913475502722, which contains 22 as substring.

2820769 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2820709) 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, 5187 + ... + 5704.

It is an arithmetic number, because the mean of its divisors is an integer number (413896).

2^2820769 is an apocalyptic number.

It is an amenable number.

2820769 is a deficient number, since it is larger than the sum of its proper divisors (490399).

2820769 is a wasteful number, since it uses less digits than its factorization.

2820769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10935.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 2820769 is about 1679.5145131853. The cubic root of 2820769 is about 141.2936054579.

The spelling of 2820769 in words is "two million, eight hundred twenty thousand, seven hundred sixty-nine".