5638211 has 4 divisors (see below), whose sum is σ = 5643000. Its totient is φ = 5633424.

The previous prime is 5638207. The next prime is 5638219. The reversal of 5638211 is 1128365.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 5638211 - 2² = 5638207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5638219) 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, 740 + ... + 3438.

It is an arithmetic number, because the mean of its divisors is an integer number (1410750).

Almost surely, 2^5638211 is an apocalyptic number.

5638211 is a deficient number, since it is larger than the sum of its proper divisors (4789).

5638211 is a wasteful number, since it uses less digits than its factorization.

5638211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4788.

The product of its digits is 1440, while the sum is 26.

The square root of 5638211 is about 2374.4917350877. The cubic root of 5638211 is about 177.9837863446.

The spelling of 5638211 in words is "five million, six hundred thirty-eight thousand, two hundred eleven".