2828865 has 32 divisors (see below), whose sum is σ = 4959360. Its totient is φ = 1368576.

The previous prime is 2828857. The next prime is 2828867. The reversal of 2828865 is 5688282.

It is not a de Polignac number, because 2828865 - 2³ = 2828857 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2828867) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17274 + ... + 17436.

It is an arithmetic number, because the mean of its divisors is an integer number (154980).

2^2828865 is an apocalyptic number.

It is an amenable number.

2828865 is a deficient number, since it is larger than the sum of its proper divisors (2130495).

2828865 is a wasteful number, since it uses less digits than its factorization.

2828865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273.

The product of its digits is 61440, while the sum is 39.

The square root of 2828865 is about 1681.9230065612. The cubic root of 2828865 is about 141.4286537816.

The spelling of 2828865 in words is "two million, eight hundred twenty-eight thousand, eight hundred sixty-five".