7890828 has 24 divisors (see below), whose sum is σ = 20086080. Its totient is φ = 2391120.

The previous prime is 7890811. The next prime is 7890847. The reversal of 7890828 is 8280987.

It is a happy number.

7890828 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 7890828.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29758 + ... + 30021.

It is an arithmetic number, because the mean of its divisors is an integer number (836920).

Almost surely, 2^7890828 is an apocalyptic number.

It is an amenable number.

7890828 is an abundant number, since it is smaller than the sum of its proper divisors (12195252).

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

7890828 is a wasteful number, since it uses less digits than its factorization.

7890828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59797 (or 59795 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 42.

The square root of 7890828 is about 2809.0617650739. The cubic root of 7890828 is about 199.0860632934.

The spelling of 7890828 in words is "seven million, eight hundred ninety thousand, eight hundred twenty-eight".