2855321 has 8 divisors (see below), whose sum is σ = 3273984. Its totient is φ = 2439360.

The previous prime is 2855309. The next prime is 2855323. The reversal of 2855321 is 1235582.

2855321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2855321 - 2⁶ = 2855257 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2855323) 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 7 ways as a sum of consecutive naturals, for example, 2801 + ... + 3681.

It is an arithmetic number, because the mean of its divisors is an integer number (409248).

2^2855321 is an apocalyptic number.

It is an amenable number.

2855321 is a deficient number, since it is larger than the sum of its proper divisors (418663).

2855321 is an equidigital number, since it uses as much as digits as its factorization.

2855321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351.

The product of its digits is 2400, while the sum is 26.

The square root of 2855321 is about 1689.7695109097. The cubic root of 2855321 is about 141.8681742917.

The spelling of 2855321 in words is "two million, eight hundred fifty-five thousand, three hundred twenty-one".