5638215 has 16 divisors (see below), whose sum is σ = 9841536. Its totient is φ = 2733600.

The previous prime is 5638207. The next prime is 5638219. The reversal of 5638215 is 5128365.

It is not a de Polignac number, because 5638215 - 2³ = 5638207 is a prime.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 16921 + ... + 17250.

It is an arithmetic number, because the mean of its divisors is an integer number (615096).

Almost surely, 2^5638215 is an apocalyptic number.

5638215 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

5638215 is a deficient number, since it is larger than the sum of its proper divisors (4203321).

5638215 is a wasteful number, since it uses less digits than its factorization.

5638215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34190.

The product of its digits is 7200, while the sum is 30.

The square root of 5638215 is about 2374.4925773731. The cubic root of 5638215 is about 177.9838284345.

It can be divided in two parts, 563 and 8215, that added together give a palindrome (8778).

The spelling of 5638215 in words is "five million, six hundred thirty-eight thousand, two hundred fifteen".