8127987 has 8 divisors (see below), whose sum is σ = 12385536. Its totient is φ = 4644552.

The previous prime is 8127979. The next prime is 8127997. The reversal of 8127987 is 7897218.

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

It is not a de Polignac number, because 8127987 - 2³ = 8127979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8127937) 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 7 ways as a sum of consecutive naturals, for example, 193503 + ... + 193544.

It is an arithmetic number, because the mean of its divisors is an integer number (1548192).

Almost surely, 2^8127987 is an apocalyptic number.

8127987 is a deficient number, since it is larger than the sum of its proper divisors (4257549).

8127987 is a wasteful number, since it uses less digits than its factorization.

8127987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387057.

The product of its digits is 56448, while the sum is 42.

The square root of 8127987 is about 2850.9624690620. The cubic root of 8127987 is about 201.0609206195.

The spelling of 8127987 in words is "eight million, one hundred twenty-seven thousand, nine hundred eighty-seven".