5638271 has 4 divisors (see below), whose sum is σ = 5969952. Its totient is φ = 5306592.

The previous prime is 5638253. The next prime is 5638277. The reversal of 5638271 is 1728365.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1728365 = 5 ⋅345673.

It is a cyclic number.

It is not a de Polignac number, because 5638271 - 2⁶ = 5638207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5638277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165815 + ... + 165848.

It is an arithmetic number, because the mean of its divisors is an integer number (1492488).

Almost surely, 2^5638271 is an apocalyptic number.

5638271 is a deficient number, since it is larger than the sum of its proper divisors (331681).

5638271 is a wasteful number, since it uses less digits than its factorization.

5638271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331680.

The product of its digits is 10080, while the sum is 32.

The square root of 5638271 is about 2374.5043693369. The cubic root of 5638271 is about 177.9844176908.

The spelling of 5638271 in words is "five million, six hundred thirty-eight thousand, two hundred seventy-one".