2104439 has 4 divisors (see below), whose sum is σ = 2139000. Its totient is φ = 2069880.

The previous prime is 2104433. The next prime is 2104441. The reversal of 2104439 is 9344012.

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 2104439 - 2⁴ = 2104423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17189 + ... + 17310.

It is an arithmetic number, because the mean of its divisors is an integer number (534750).

2^2104439 is an apocalyptic number.

2104439 is a deficient number, since it is larger than the sum of its proper divisors (34561).

2104439 is an equidigital number, since it uses as much as digits as its factorization.

2104439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34560.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 2104439 is about 1450.6684666043. The cubic root of 2104439 is about 128.1480830114.

The spelling of 2104439 in words is "two million, one hundred four thousand, four hundred thirty-nine".