2845321 has 4 divisors (see below), whose sum is σ = 2884372. Its totient is φ = 2806272.

The previous prime is 2845319. The next prime is 2845357. The reversal of 2845321 is 1235482.

2845321 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.

It can be written as a sum of positive squares in 2 ways, for example, as 783225 + 2062096 = 885^2 + 1436^2 .

It is a cyclic number.

It is not a de Polignac number, because 2845321 - 2¹ = 2845319 is a prime.

It is a Duffinian number.

2845321 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2845361) 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, 19416 + ... + 19561.

It is an arithmetic number, because the mean of its divisors is an integer number (721093).

2^2845321 is an apocalyptic number.

It is an amenable number.

2845321 is a deficient number, since it is larger than the sum of its proper divisors (39051).

2845321 is an equidigital number, since it uses as much as digits as its factorization.

2845321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39050.

The product of its digits is 1920, while the sum is 25.

The square root of 2845321 is about 1686.8079321606. The cubic root of 2845321 is about 141.7023620932.

The spelling of 2845321 in words is "two million, eight hundred forty-five thousand, three hundred twenty-one".