9782878 has 16 divisors (see below), whose sum is σ = 16974720. Its totient is φ = 4141656.

The previous prime is 9782873. The next prime is 9782879. The reversal of 9782878 is 8782879.

9782878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9782873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3048 + ... + 5371.

It is an arithmetic number, because the mean of its divisors is an integer number (1060920).

Almost surely, 2^9782878 is an apocalyptic number.

9782878 is a deficient number, since it is larger than the sum of its proper divisors (7191842).

9782878 is a wasteful number, since it uses less digits than its factorization.

9782878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8511.

The product of its digits is 451584, while the sum is 49.

The square root of 9782878 is about 3127.7592618359. The cubic root of 9782878 is about 213.8727953959.

Subtracting from 9782878 its reverse (8782879), we obtain a palindrome (999999).

The spelling of 9782878 in words is "nine million, seven hundred eighty-two thousand, eight hundred seventy-eight".