8091887 has 4 divisors (see below), whose sum is σ = 8099040. Its totient is φ = 8084736.

The previous prime is 8091877. The next prime is 8091901. The reversal of 8091887 is 7881908.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8091887 - 2⁴ = 8091871 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 (8091877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1463 + ... + 4280.

It is an arithmetic number, because the mean of its divisors is an integer number (2024760).

Almost surely, 2^8091887 is an apocalyptic number.

8091887 is a deficient number, since it is larger than the sum of its proper divisors (7153).

8091887 is a wasteful number, since it uses less digits than its factorization.

8091887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7152.

The product of its (nonzero) digits is 32256, while the sum is 41.

The square root of 8091887 is about 2844.6242282593. The cubic root of 8091887 is about 200.7628118912.

It can be divided in two parts, 8091 and 887, that multiplied together give a palindrome (7176717).

The spelling of 8091887 in words is "eight million, ninety-one thousand, eight hundred eighty-seven".