2203688 has 8 divisors (see below), whose sum is σ = 4131930. Its totient is φ = 1101840.

The previous prime is 2203679. The next prime is 2203711. The reversal of 2203688 is 8863022.

It can be written as a sum of positive squares in only one way, i.e., 1909924 + 293764 = 1382^2 + 542^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 2203688.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137723 + ... + 137738.

2^2203688 is an apocalyptic number.

It is an amenable number.

2203688 is a deficient number, since it is larger than the sum of its proper divisors (1928242).

2203688 is a wasteful number, since it uses less digits than its factorization.

2203688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275467 (or 275463 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 2203688 is about 1484.4824013777. The cubic root of 2203688 is about 130.1317795863.

The spelling of 2203688 in words is "two million, two hundred three thousand, six hundred eighty-eight".