7887888 has 120 divisors (see below), whose sum is σ = 24626400. Its totient is φ = 2410560.

The previous prime is 7887883. The next prime is 7887889. The reversal of 7887888 is 8887887.

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

Its product of digits (1605632) is a multiple of the sum of its prime factors (98).

It is not an unprimeable number, because it can be changed into a prime (7887883) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 254433 + ... + 254463.

It is an arithmetic number, because the mean of its divisors is an integer number (205220).

Almost surely, 2^7887888 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 7887888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12313200).

7887888 is an abundant number, since it is smaller than the sum of its proper divisors (16738512).

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

7887888 is a wasteful number, since it uses less digits than its factorization.

7887888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98 (or 55 counting only the distinct ones).

The product of its digits is 1605632, while the sum is 54.

The square root of 7887888 is about 2808.5384099207. The cubic root of 7887888 is about 199.0613347633.

Subtracting 7887888 from its reverse (8887887), we obtain a palindrome (999999).

The spelling of 7887888 in words is "seven million, eight hundred eighty-seven thousand, eight hundred eighty-eight".