8105987 has 8 divisors (see below), whose sum is σ = 8351952. Its totient is φ = 7862400.

The previous prime is 8105983. The next prime is 8106001. The reversal of 8105987 is 7895018.

8105987 is nontrivially palindromic in base 14.

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 8105987 - 2² = 8105983 is a prime.

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 8105987.

It is not an unprimeable number, because it can be changed into a prime (8105983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8183 + ... + 9119.

It is an arithmetic number, because the mean of its divisors is an integer number (1043994).

Almost surely, 2^8105987 is an apocalyptic number.

8105987 is a deficient number, since it is larger than the sum of its proper divisors (245965).

8105987 is a wasteful number, since it uses less digits than its factorization.

8105987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189.

The product of its (nonzero) digits is 20160, while the sum is 38.

The square root of 8105987 is about 2847.1015085522. The cubic root of 8105987 is about 200.8793530249.

The spelling of 8105987 in words is "eight million, one hundred five thousand, nine hundred eighty-seven".