5664213 has 12 divisors (see below), whose sum is σ = 8663148. Its totient is φ = 3553920.

The previous prime is 5664209. The next prime is 5664257. The reversal of 5664213 is 3124665.

5664213 is a `hidden beast` number, since 5 + 6 + 642 + 13 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2304324 + 3359889 = 1518^2 + 1833^2 .

It is not a de Polignac number, because 5664213 - 2² = 5664209 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5664203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18358 + ... + 18663.

It is an arithmetic number, because the mean of its divisors is an integer number (721929).

Almost surely, 2^5664213 is an apocalyptic number.

It is an amenable number.

5664213 is a deficient number, since it is larger than the sum of its proper divisors (2998935).

5664213 is a wasteful number, since it uses less digits than its factorization.

5664213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37044 (or 37041 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 5664213 is about 2379.9607139615. The cubic root of 5664213 is about 178.2569721889.

Adding to 5664213 its reverse (3124665), we get a palindrome (8788878).

The spelling of 5664213 in words is "five million, six hundred sixty-four thousand, two hundred thirteen".