2688992 has 24 divisors (see below), whose sum is σ = 5606496. Its totient is φ = 1265152.

The previous prime is 2688979. The next prime is 2688997. The reversal of 2688992 is 2998862.

It is a d-powerful number, because it can be written as 2⁸ + 6 + 8² + 8⁷ + 9⁵ + 9⁶ + 2¹⁰ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2688997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1928 + ... + 3015.

It is an arithmetic number, because the mean of its divisors is an integer number (233604).

2^2688992 is an apocalyptic number.

It is an amenable number.

2688992 is an abundant number, since it is smaller than the sum of its proper divisors (2917504).

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

2688992 is a wasteful number, since it uses less digits than its factorization.

2688992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4970 (or 4962 counting only the distinct ones).

The product of its digits is 124416, while the sum is 44.

The square root of 2688992 is about 1639.8146236694. The cubic root of 2688992 is about 139.0581679499.

The spelling of 2688992 in words is "two million, six hundred eighty-eight thousand, nine hundred ninety-two".