2688872 has 8 divisors (see below), whose sum is σ = 5041650. Its totient is φ = 1344432.

The previous prime is 2688869. The next prime is 2688877. The reversal of 2688872 is 2788862.

It can be written as a sum of positive squares in only one way, i.e., 1552516 + 1136356 = 1246^2 + 1066^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (2688877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 168047 + ... + 168062.

2^2688872 is an apocalyptic number.

It is an amenable number.

2688872 is a deficient number, since it is larger than the sum of its proper divisors (2352778).

2688872 is a wasteful number, since it uses less digits than its factorization.

2688872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336115 (or 336111 counting only the distinct ones).

The product of its digits is 86016, while the sum is 41.

The square root of 2688872 is about 1639.7780337594. The cubic root of 2688872 is about 139.0560993645.

The spelling of 2688872 in words is "two million, six hundred eighty-eight thousand, eight hundred seventy-two".