2604839 has 2 divisors, whose sum is σ = 2604840. Its totient is φ = 2604838.

The previous prime is 2604829. The next prime is 2604857. The reversal of 2604839 is 9384062.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2604839 - 2⁸ = 2604583 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2604829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1302419 + 1302420.

It is an arithmetic number, because the mean of its divisors is an integer number (1302420).

2^2604839 is an apocalyptic number.

2604839 is a deficient number, since it is larger than the sum of its proper divisors (1).

2604839 is an equidigital number, since it uses as much as digits as its factorization.

2604839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 2604839 is about 1613.9513623403. The cubic root of 2604839 is about 137.5921409958.

It can be divided in two parts, 2604 and 839, that added together give a palindrome (3443).

The spelling of 2604839 in words is "two million, six hundred four thousand, eight hundred thirty-nine".