2828081 has 4 divisors (see below), whose sum is σ = 2831472. Its totient is φ = 2824692.

The previous prime is 2828053. The next prime is 2828083. The reversal of 2828081 is 1808282.

2828081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2828081 is a prime.

It is a super-3 number, since 3×2828081³ = 67857333061728166323, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2828083) 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 3 ways as a sum of consecutive naturals, for example, 530 + ... + 2436.

It is an arithmetic number, because the mean of its divisors is an integer number (707868).

2^2828081 is an apocalyptic number.

It is an amenable number.

2828081 is a deficient number, since it is larger than the sum of its proper divisors (3391).

2828081 is a wasteful number, since it uses less digits than its factorization.

2828081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3390.

The product of its (nonzero) digits is 2048, while the sum is 29.

The square root of 2828081 is about 1681.6899238564. The cubic root of 2828081 is about 141.4155872562.

The spelling of 2828081 in words is "two million, eight hundred twenty-eight thousand, eighty-one".