7887776 has 48 divisors (see below), whose sum is σ = 17033184. Its totient is φ = 3573504.

The previous prime is 7887773. The next prime is 7887809. The reversal of 7887776 is 6777887.

It is not an unprimeable number, because it can be changed into a prime (7887773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27731 + ... + 28013.

It is an arithmetic number, because the mean of its divisors is an integer number (354858).

Almost surely, 2^7887776 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 7887776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8516592).

7887776 is an abundant number, since it is smaller than the sum of its proper divisors (9145408).

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

7887776 is a wasteful number, since it uses less digits than its factorization.

7887776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373 (or 365 counting only the distinct ones).

The product of its digits is 921984, while the sum is 50.

The square root of 7887776 is about 2808.5184706532. The cubic root of 7887776 is about 199.0603926026.

The spelling of 7887776 in words is "seven million, eight hundred eighty-seven thousand, seven hundred seventy-six".