2820835 has 16 divisors (see below), whose sum is σ = 3720960. Its totient is φ = 2043360.

The previous prime is 2820833. The next prime is 2820863. The reversal of 2820835 is 5380282.

2820835 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2820835 - 2¹ = 2820833 is a prime.

It is a super-2 number, since 2×2820835² = 15914220194450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2820833) by changing a digit.

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, 1540 + ... + 2830.

It is an arithmetic number, because the mean of its divisors is an integer number (232560).

2^2820835 is an apocalyptic number.

2820835 is a deficient number, since it is larger than the sum of its proper divisors (900125).

2820835 is a wasteful number, since it uses less digits than its factorization.

2820835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 2820835 is about 1679.5341616055. The cubic root of 2820835 is about 141.2947074394.

It can be divided in two parts, 2820 and 835, that added together give a triangular number (3655 = T₈₅).

The spelling of 2820835 in words is "two million, eight hundred twenty thousand, eight hundred thirty-five".