2820850 has 12 divisors (see below), whose sum is σ = 5246874. Its totient is φ = 1128320.

The previous prime is 2820833. The next prime is 2820863. The reversal of 2820850 is 580282.

2820850 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 2217121 + 603729 = 1489^2 + 777^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

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 5 ways as a sum of consecutive naturals, for example, 28159 + ... + 28258.

2^2820850 is an apocalyptic number.

2820850 is a deficient number, since it is larger than the sum of its proper divisors (2426024).

2820850 is a wasteful number, since it uses less digits than its factorization.

2820850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56429 (or 56424 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 2820850 is about 1679.5386271235. The cubic root of 2820850 is about 141.2949578873.

The spelling of 2820850 in words is "two million, eight hundred twenty thousand, eight hundred fifty".