7987568 has 20 divisors (see below), whose sum is σ = 15523560. Its totient is φ = 3981504.

The previous prime is 7987561. The next prime is 7987589. The reversal of 7987568 is 8657897.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7987561) 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, 6938 + ... + 8006.

It is an arithmetic number, because the mean of its divisors is an integer number (776178).

Almost surely, 2^7987568 is an apocalyptic number.

It is an amenable number.

7987568 is a deficient number, since it is larger than the sum of its proper divisors (7535992).

7987568 is a wasteful number, since it uses less digits than its factorization.

7987568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1544 (or 1538 counting only the distinct ones).

The product of its digits is 846720, while the sum is 50.

The square root of 7987568 is about 2826.2285824045. The cubic root of 7987568 is about 199.8963462888.

The spelling of 7987568 in words is "seven million, nine hundred eighty-seven thousand, five hundred sixty-eight".