7987896 has 96 divisors (see below), whose sum is σ = 25683840. Its totient is φ = 2278368.

The previous prime is 7987883. The next prime is 7987897. The reversal of 7987896 is 6987897.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7987897) 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 23 ways as a sum of consecutive naturals, for example, 13315 + ... + 13901.

It is an arithmetic number, because the mean of its divisors is an integer number (267540).

Almost surely, 2^7987896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7987896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12841920).

7987896 is an abundant number, since it is smaller than the sum of its proper divisors (17695944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7987896 is a wasteful number, since it uses less digits than its factorization.

7987896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615 (or 599 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 54.

The square root of 7987896 is about 2826.2866096700. The cubic root of 7987896 is about 199.8990824201.

Subtracting from 7987896 its reverse (6987897), we obtain a palindrome (999999).

The spelling of 7987896 in words is "seven million, nine hundred eighty-seven thousand, eight hundred ninety-six".