7987888 has 20 divisors (see below), whose sum is σ = 15632928. Its totient is φ = 3953600.

The previous prime is 7987883. The next prime is 7987897. The reversal of 7987888 is 8887897.

It is not an unprimeable number, because it can be changed into a prime (7987883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 856 + ... + 4087.

Almost surely, 2^7987888 is an apocalyptic number.

It is an amenable number.

7987888 is a deficient number, since it is larger than the sum of its proper divisors (7645040).

7987888 is a wasteful number, since it uses less digits than its factorization.

7987888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5052 (or 5046 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 55.

The square root of 7987888 is about 2826.2851943850. The cubic root of 7987888 is about 199.8990156861.

Subtracting 7987888 from its reverse (8887897), we obtain a palindrome (900009).

The spelling of 7987888 in words is "seven million, nine hundred eighty-seven thousand, eight hundred eighty-eight".