2609039 has 4 divisors (see below), whose sum is σ = 2653320. Its totient is φ = 2564760.

The previous prime is 2609029. The next prime is 2609059. The reversal of 2609039 is 9309062.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2609039 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 (2609029) 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, 22052 + ... + 22169.

It is an arithmetic number, because the mean of its divisors is an integer number (663330).

2^2609039 is an apocalyptic number.

2609039 is a deficient number, since it is larger than the sum of its proper divisors (44281).

2609039 is an equidigital number, since it uses as much as digits as its factorization.

2609039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44280.

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

The square root of 2609039 is about 1615.2519927244. The cubic root of 2609039 is about 137.6660517287. Note that the first 3 decimals are identical.

The spelling of 2609039 in words is "two million, six hundred nine thousand, thirty-nine".