2739009 has 32 divisors (see below), whose sum is σ = 4587520. Its totient is φ = 1415232.

The previous prime is 2738947. The next prime is 2739013. The reversal of 2739009 is 9009372.

It is not a de Polignac number, because 2739009 - 2⁸ = 2738753 is a prime.

2739009 is a modest number, since divided by 9009 gives 273 as remainder.

It is a Curzon number.

2739009 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2739049) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21504 + ... + 21630.

It is an arithmetic number, because the mean of its divisors is an integer number (143360).

2^2739009 is an apocalyptic number.

It is an amenable number.

2739009 is a deficient number, since it is larger than the sum of its proper divisors (1848511).

2739009 is a wasteful number, since it uses less digits than its factorization.

2739009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229.

The product of its (nonzero) digits is 3402, while the sum is 30.

The square root of 2739009 is about 1654.9951661561. The cubic root of 2739009 is about 139.9150675329.

The spelling of 2739009 in words is "two million, seven hundred thirty-nine thousand, nine".