8166887 has 2 divisors, whose sum is σ = 8166888. Its totient is φ = 8166886.

The previous prime is 8166853. The next prime is 8166911. The reversal of 8166887 is 7886618.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8166887 - 2¹⁴ = 8150503 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8162887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4083443 + 4083444.

It is an arithmetic number, because the mean of its divisors is an integer number (4083444).

Almost surely, 2^8166887 is an apocalyptic number.

8166887 is a deficient number, since it is larger than the sum of its proper divisors (1).

8166887 is an equidigital number, since it uses as much as digits as its factorization.

8166887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 44.

The square root of 8166887 is about 2857.7765832899. The cubic root of 8166887 is about 201.3811649606.

The spelling of 8166887 in words is "eight million, one hundred sixty-six thousand, eight hundred eighty-seven".