2708289 has 16 divisors (see below), whose sum is σ = 4122240. Its totient is φ = 1756080.

The previous prime is 2708267. The next prime is 2708291. The reversal of 2708289 is 9828072.

It is not a de Polignac number, because 2708289 - 2⁵ = 2708257 is a prime.

2708289 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2708249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 357 + ... + 2354.

It is an arithmetic number, because the mean of its divisors is an integer number (257640).

2^2708289 is an apocalyptic number.

It is an amenable number.

2708289 is a deficient number, since it is larger than the sum of its proper divisors (1413951).

2708289 is a wasteful number, since it uses less digits than its factorization.

2708289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2757 (or 2751 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 2708289 is about 1645.6880020223. The cubic root of 2708289 is about 139.3900162121.

The spelling of 2708289 in words is "two million, seven hundred eight thousand, two hundred eighty-nine".