5666671 has 8 divisors (see below), whose sum is σ = 5937120. Its totient is φ = 5398272.

The previous prime is 5666641. The next prime is 5666677. The reversal of 5666671 is 1766665.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5666671 - 2¹¹ = 5664623 is a prime.

It is a super-2 number, since 2×5666671² = 64222320444482, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5666671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5666677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9675 + ... + 10243.

It is an arithmetic number, because the mean of its divisors is an integer number (742140).

Almost surely, 2^5666671 is an apocalyptic number.

5666671 is a deficient number, since it is larger than the sum of its proper divisors (270449).

5666671 is a wasteful number, since it uses less digits than its factorization.

5666671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025.

The product of its digits is 45360, while the sum is 37.

The square root of 5666671 is about 2380.4770530295. The cubic root of 5666671 is about 178.2827534859.

The spelling of 5666671 in words is "five million, six hundred sixty-six thousand, six hundred seventy-one".