5638871 has 6 divisors (see below), whose sum is σ = 6559560. Its totient is φ = 4833276.

The previous prime is 5638859. The next prime is 5638873. The reversal of 5638871 is 1788365.

It is not a de Polignac number, because 5638871 - 2¹⁸ = 5376727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5638873) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57491 + ... + 57588.

It is an arithmetic number, because the mean of its divisors is an integer number (1093260).

Almost surely, 2^5638871 is an apocalyptic number.

5638871 is a deficient number, since it is larger than the sum of its proper divisors (920689).

5638871 is a wasteful number, since it uses less digits than its factorization.

5638871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115093 (or 115086 counting only the distinct ones).

The product of its digits is 40320, while the sum is 38.

The square root of 5638871 is about 2374.6307081313. The cubic root of 5638871 is about 177.9907309065.

The spelling of 5638871 in words is "five million, six hundred thirty-eight thousand, eight hundred seventy-one".