2321939 has 4 divisors (see below), whose sum is σ = 2327160. Its totient is φ = 2316720.

The previous prime is 2321923. The next prime is 2321947. The reversal of 2321939 is 9391232.

2321939 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 is a cyclic number.

It is not a de Polignac number, because 2321939 - 2⁴ = 2321923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2321909) 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, 1874 + ... + 2855.

It is an arithmetic number, because the mean of its divisors is an integer number (581790).

2^2321939 is an apocalyptic number.

2321939 is a deficient number, since it is larger than the sum of its proper divisors (5221).

2321939 is an equidigital number, since it uses as much as digits as its factorization.

2321939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5220.

The product of its digits is 2916, while the sum is 29.

The square root of 2321939 is about 1523.7909961671. The cubic root of 2321939 is about 132.4189892839.

The spelling of 2321939 in words is "two million, three hundred twenty-one thousand, nine hundred thirty-nine".