5638928 has 20 divisors (see below), whose sum is σ = 10987020. Its totient is φ = 2803584.

The previous prime is 5638873. The next prime is 5638939. The reversal of 5638928 is 8298365.

It can be written as a sum of positive squares in 2 ways, for example, as 5438224 + 200704 = 2332^2 + 448^2 .

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, 2258 + ... + 4046.

It is an arithmetic number, because the mean of its divisors is an integer number (549351).

Almost surely, 2^5638928 is an apocalyptic number.

It is an amenable number.

5638928 is a deficient number, since it is larger than the sum of its proper divisors (5348092).

5638928 is a wasteful number, since it uses less digits than its factorization.

5638928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1994 (or 1988 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

The square root of 5638928 is about 2374.6427099671. The cubic root of 5638928 is about 177.9913306387.

The spelling of 5638928 in words is "five million, six hundred thirty-eight thousand, nine hundred twenty-eight".