5221668 has 12 divisors (see below), whose sum is σ = 12183920. Its totient is φ = 1740552.

The previous prime is 5221651. The next prime is 5221673. The reversal of 5221668 is 8661225.

5221668 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217558 + ... + 217581.

Almost surely, 2^5221668 is an apocalyptic number.

It is an amenable number.

5221668 is an abundant number, since it is smaller than the sum of its proper divisors (6962252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5221668 is a wasteful number, since it uses less digits than its factorization.

5221668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435146 (or 435144 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 5221668 is about 2285.0969344866. The cubic root of 5221668 is about 173.4881243827.

The spelling of 5221668 in words is "five million, two hundred twenty-one thousand, six hundred sixty-eight".