2709081 has 12 divisors (see below), whose sum is σ = 3932500. Its totient is φ = 1797120.

The previous prime is 2709079. The next prime is 2709097. The reversal of 2709081 is 1809072.

2709081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1587600 + 1121481 = 1260^2 + 1059^2 .

It is not a de Polignac number, because 2709081 - 2¹ = 2709079 is a prime.

It is a super-2 number, since 2×2709081² = 14678239729122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2709061) 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 11 ways as a sum of consecutive naturals, for example, 1545 + ... + 2793.

2^2709081 is an apocalyptic number.

It is an amenable number.

2709081 is a deficient number, since it is larger than the sum of its proper divisors (1223419).

2709081 is a wasteful number, since it uses less digits than its factorization.

2709081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1496 (or 1493 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 2709081 is about 1645.9286132758. The cubic root of 2709081 is about 139.4036024201.

Subtracting from 2709081 its reverse (1809072), we obtain a palindrome (900009).

The spelling of 2709081 in words is "two million, seven hundred nine thousand, eighty-one".