2655688 has 32 divisors (see below), whose sum is σ = 5817600. Its totient is φ = 1112832.

The previous prime is 2655661. The next prime is 2655691. The reversal of 2655688 is 8865562.

It is a self number, because there is not a number n which added to its sum of digits gives 2655688.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2128 + ... + 3136.

It is an arithmetic number, because the mean of its divisors is an integer number (181800).

2^2655688 is an apocalyptic number.

2655688 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2655688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2908800).

2655688 is an abundant number, since it is smaller than the sum of its proper divisors (3161912).

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

2655688 is a wasteful number, since it uses less digits than its factorization.

2655688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069 (or 1065 counting only the distinct ones).

The product of its digits is 115200, while the sum is 40.

The square root of 2655688 is about 1629.6281784505. The cubic root of 2655688 is about 138.4816885521.

The spelling of 2655688 in words is "two million, six hundred fifty-five thousand, six hundred eighty-eight".