2688006 has 48 divisors (see below), whose sum is σ = 6089904. Its totient is φ = 787968.

The previous prime is 2687999. The next prime is 2688017. The reversal of 2688006 is 6008862.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36786 + ... + 36858.

It is an arithmetic number, because the mean of its divisors is an integer number (126873).

2^2688006 is an apocalyptic number.

2688006 is an abundant number, since it is smaller than the sum of its proper divisors (3401898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2688006 is a wasteful number, since it uses less digits than its factorization.

2688006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 2688006 is about 1639.5139523652. The cubic root of 2688006 is about 139.0411692486.

The spelling of 2688006 in words is "two million, six hundred eighty-eight thousand, six".