5621216 has 12 divisors (see below), whose sum is σ = 11066832. Its totient is φ = 2810592.

The previous prime is 5621197. The next prime is 5621221. The reversal of 5621216 is 6121265.

It is a junction number, because it is equal to n+sod(n) for n = 5621191 and 5621200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87800 + ... + 87863.

It is an arithmetic number, because the mean of its divisors is an integer number (922236).

Almost surely, 2^5621216 is an apocalyptic number.

It is an amenable number.

5621216 is a deficient number, since it is larger than the sum of its proper divisors (5445616).

5621216 is a wasteful number, since it uses less digits than its factorization.

5621216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175673 (or 175665 counting only the distinct ones).

The product of its digits is 720, while the sum is 23.

The square root of 5621216 is about 2370.9103736751. The cubic root of 5621216 is about 177.8047769179.

The spelling of 5621216 in words is "five million, six hundred twenty-one thousand, two hundred sixteen".