8163887 has 4 divisors (see below), whose sum is σ = 8222760. Its totient is φ = 8105016.

The previous prime is 8163871. The next prime is 8163917. The reversal of 8163887 is 7883618.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8163887 - 2⁴ = 8163871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8163817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29228 + ... + 29505.

It is an arithmetic number, because the mean of its divisors is an integer number (2055690).

Almost surely, 2^8163887 is an apocalyptic number.

8163887 is a deficient number, since it is larger than the sum of its proper divisors (58873).

8163887 is a wasteful number, since it uses less digits than its factorization.

8163887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58872.

The product of its digits is 64512, while the sum is 41.

The square root of 8163887 is about 2857.2516515001. The cubic root of 8163887 is about 201.3565036878.

The spelling of 8163887 in words is "eight million, one hundred sixty-three thousand, eight hundred eighty-seven".