2839321 has 4 divisors (see below), whose sum is σ = 2930944. Its totient is φ = 2747700.

The previous prime is 2839313. The next prime is 2839337. The reversal of 2839321 is 1239382.

2839321 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2839321 - 2³ = 2839313 is a prime.

It is a Duffinian number.

2839321 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2839321.

It is not an unprimeable number, because it can be changed into a prime (2839301) 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, 45765 + ... + 45826.

It is an arithmetic number, because the mean of its divisors is an integer number (732736).

2^2839321 is an apocalyptic number.

It is an amenable number.

2839321 is a deficient number, since it is larger than the sum of its proper divisors (91623).

2839321 is an equidigital number, since it uses as much as digits as its factorization.

2839321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91622.

The product of its digits is 2592, while the sum is 28.

The square root of 2839321 is about 1685.0284864061. The cubic root of 2839321 is about 141.6026882197.

It can be divided in two parts, 2839 and 321, that added together give a triangular number (3160 = T₇₉).

The spelling of 2839321 in words is "two million, eight hundred thirty-nine thousand, three hundred twenty-one".