7890888 has 16 divisors (see below), whose sum is σ = 19727280. Its totient is φ = 2630288.

The previous prime is 7890881. The next prime is 7890913. The reversal of 7890888 is 8880987.

It is a happy number.

7890888 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×7890888² = 124532226857088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7890881) 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, 164370 + ... + 164417.

It is an arithmetic number, because the mean of its divisors is an integer number (1232955).

Almost surely, 2^7890888 is an apocalyptic number.

It is an amenable number.

7890888 is an abundant number, since it is smaller than the sum of its proper divisors (11836392).

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

7890888 is a wasteful number, since it uses less digits than its factorization.

7890888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328796 (or 328792 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 48.

The square root of 7890888 is about 2809.0724447760. The cubic root of 7890888 is about 199.0865678933.

Subtracting 7890888 from its reverse (8880987), we obtain a palindrome (990099).

It can be divided in two parts, 7890 and 888, that added together give a palindrome (8778).

The spelling of 7890888 in words is "seven million, eight hundred ninety thousand, eight hundred eighty-eight".