7998888 has 16 divisors (see below), whose sum is σ = 19997280. Its totient is φ = 2666288.

The previous prime is 7998863. The next prime is 7998937. The reversal of 7998888 is 8888997.

7998888 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 166620 + ... + 166667.

It is an arithmetic number, because the mean of its divisors is an integer number (1249830).

Almost surely, 2^7998888 is an apocalyptic number.

It is an amenable number.

7998888 is an abundant number, since it is smaller than the sum of its proper divisors (11998392).

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

7998888 is a wasteful number, since it uses less digits than its factorization.

7998888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333296 (or 333292 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 57.

The square root of 7998888 is about 2828.2305422295. The cubic root of 7998888 is about 199.9907329039.

The spelling of 7998888 in words is "seven million, nine hundred ninety-eight thousand, eight hundred eighty-eight".