2688489 has 12 divisors (see below), whose sum is σ = 3974256. Its totient is φ = 1750392.

The previous prime is 2688487. The next prime is 2688523. The reversal of 2688489 is 9848862.

It is a happy number.

It is not a de Polignac number, because 2688489 - 2¹ = 2688487 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2688487) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3087 + ... + 3860.

It is an arithmetic number, because the mean of its divisors is an integer number (331188).

2^2688489 is an apocalyptic number.

It is an amenable number.

2688489 is a deficient number, since it is larger than the sum of its proper divisors (1285767).

2688489 is a wasteful number, since it uses less digits than its factorization.

2688489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6996 (or 6993 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 2688489 is about 1639.6612455016. The cubic root of 2688489 is about 139.0494967179.

The spelling of 2688489 in words is "two million, six hundred eighty-eight thousand, four hundred eighty-nine".