2788648 has 16 divisors (see below), whose sum is σ = 5328180. Its totient is φ = 1367808.

The previous prime is 2788633. The next prime is 2788661. The reversal of 2788648 is 8468872.

2788648 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2244004 + 544644 = 1498^2 + 738^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2865 + ... + 3712.

2^2788648 is an apocalyptic number.

It is an amenable number.

2788648 is a deficient number, since it is larger than the sum of its proper divisors (2539532).

2788648 is a wasteful number, since it uses less digits than its factorization.

2788648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6636 (or 6632 counting only the distinct ones).

The product of its digits is 172032, while the sum is 43.

The square root of 2788648 is about 1669.9245491938. The cubic root of 2788648 is about 140.7552382248.

It can be divided in two parts, 278864 and 8, that added together give a palindrome (278872).

The spelling of 2788648 in words is "two million, seven hundred eighty-eight thousand, six hundred forty-eight".