2828000861 has 4 divisors (see below), whose sum is σ = 3232000992. Its totient is φ = 2424000732.

The previous prime is 2828000843. The next prime is 2828000863. The reversal of 2828000861 is 1680008282.

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 an emirpimes, since its reverse is a distinct semiprime: 1680008282 = 2 ⋅840004141.

It is a cyclic number.

It is not a de Polignac number, because 2828000861 - 2⁶ = 2828000797 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2828000863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202000055 + ... + 202000068.

It is an arithmetic number, because the mean of its divisors is an integer number (808000248).

Almost surely, 2^2828000861 is an apocalyptic number.

It is an amenable number.

2828000861 is a deficient number, since it is larger than the sum of its proper divisors (404000131).

2828000861 is an equidigital number, since it uses as much as digits as its factorization.

2828000861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404000130.

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 2828000861 is about 53178.9512965421. The cubic root of 2828000861 is about 1414.1425148462.

The spelling of 2828000861 in words is "two billion, eight hundred twenty-eight million, eight hundred sixty-one", and thus it is an aban number.