2839609 has 4 divisors (see below), whose sum is σ = 2854516. Its totient is φ = 2824704.

The previous prime is 2839601. The next prime is 2839621. The reversal of 2839609 is 9069382.

2839609 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 can be written as a sum of positive squares in 2 ways, for example, as 1392400 + 1447209 = 1180^2 + 1203^2 .

It is a cyclic number.

It is not a de Polignac number, because 2839609 - 2³ = 2839601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2839601) 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, 7164 + ... + 7549.

It is an arithmetic number, because the mean of its divisors is an integer number (713629).

2^2839609 is an apocalyptic number.

It is an amenable number.

2839609 is a deficient number, since it is larger than the sum of its proper divisors (14907).

2839609 is a wasteful number, since it uses less digits than its factorization.

2839609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14906.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 2839609 is about 1685.1139427350. The cubic root of 2839609 is about 141.6074757722.

The spelling of 2839609 in words is "two million, eight hundred thirty-nine thousand, six hundred nine".