2828305 has 4 divisors (see below), whose sum is σ = 3393972. Its totient is φ = 2262640.

The previous prime is 2828299. The next prime is 2828311. The reversal of 2828305 is 5038282.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2828299) and next prime (2828311).

It can be written as a sum of positive squares in 2 ways, for example, as 1635841 + 1192464 = 1279^2 + 1092^2 .

It is not a de Polignac number, because 2828305 - 2³ = 2828297 is a prime.

It is a Duffinian number.

2828305 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282826 + ... + 282835.

It is an arithmetic number, because the mean of its divisors is an integer number (848493).

2^2828305 is an apocalyptic number.

It is an amenable number.

2828305 is a deficient number, since it is larger than the sum of its proper divisors (565667).

2828305 is an equidigital number, since it uses as much as digits as its factorization.

2828305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565666.

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

The square root of 2828305 is about 1681.7565222112. The cubic root of 2828305 is about 141.4193207956.

The spelling of 2828305 in words is "two million, eight hundred twenty-eight thousand, three hundred five".