5671668 has 12 divisors (see below), whose sum is σ = 13233920. Its totient is φ = 1890552.

The previous prime is 5671649. The next prime is 5671669. The reversal of 5671668 is 8661765.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5671669) 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, 236308 + ... + 236331.

Almost surely, 2^5671668 is an apocalyptic number.

It is an amenable number.

5671668 is an abundant number, since it is smaller than the sum of its proper divisors (7562252).

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

5671668 is a wasteful number, since it uses less digits than its factorization.

5671668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472646 (or 472644 counting only the distinct ones).

The product of its digits is 60480, while the sum is 39.

The square root of 5671668 is about 2381.5264012813. The cubic root of 5671668 is about 178.3351426918.

The spelling of 5671668 in words is "five million, six hundred seventy-one thousand, six hundred sixty-eight".