2688104 has 16 divisors (see below), whose sum is σ = 5069220. Its totient is φ = 1336320.

The previous prime is 2688073. The next prime is 2688137. The reversal of 2688104 is 4018862.

It can be written as a sum of positive squares in 2 ways, for example, as 2044900 + 643204 = 1430^2 + 802^2 .

It is a super-2 number, since 2×2688104² = 14451806229632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 674 + ... + 2414.

2^2688104 is an apocalyptic number.

It is an amenable number.

2688104 is a deficient number, since it is larger than the sum of its proper divisors (2381116).

2688104 is a wasteful number, since it uses less digits than its factorization.

2688104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1940 (or 1936 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 2688104 is about 1639.5438389991. The cubic root of 2688104 is about 139.0428589607.

The spelling of 2688104 in words is "two million, six hundred eighty-eight thousand, one hundred four".