9828378 has 72 divisors (see below), whose sum is σ = 25507872. Its totient is φ = 2781864.

The previous prime is 9828367. The next prime is 9828391. The reversal of 9828378 is 8738289.

9828378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9828378² = 193194028221768, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 91801 + ... + 91907.

It is an arithmetic number, because the mean of its divisors is an integer number (354276).

Almost surely, 2^9828378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9828378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12753936).

9828378 is an abundant number, since it is smaller than the sum of its proper divisors (15679494).

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

9828378 is an equidigital number, since it uses as much as digits as its factorization.

9828378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 119 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 9828378 is about 3135.0244018189. The cubic root of 9828378 is about 214.2038555905.

The spelling of 9828378 in words is "nine million, eight hundred twenty-eight thousand, three hundred seventy-eight".