5666887 has 2 divisors, whose sum is σ = 5666888. Its totient is φ = 5666886.

The previous prime is 5666873. The next prime is 5666911. The reversal of 5666887 is 7886665.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5666887 - 2¹⁵ = 5634119 is a prime.

It is a super-2 number, since 2×5666887² = 64227216541538, which contains 22 as substring.

It is a Chen prime.

5666887 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5666387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2833443 + 2833444.

It is an arithmetic number, because the mean of its divisors is an integer number (2833444).

Almost surely, 2^5666887 is an apocalyptic number.

5666887 is a deficient number, since it is larger than the sum of its proper divisors (1).

5666887 is an equidigital number, since it uses as much as digits as its factorization.

5666887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 483840, while the sum is 46.

The square root of 5666887 is about 2380.5224216545. The cubic root of 5666887 is about 178.2850186951.

The spelling of 5666887 in words is "five million, six hundred sixty-six thousand, eight hundred eighty-seven".