7878843 has 16 divisors (see below), whose sum is σ = 13340160. Its totient is φ = 4502088.

The previous prime is 7878841. The next prime is 7878853. The reversal of 7878843 is 3488787.

7878843 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7878843 - 2¹ = 7878841 is a prime.

It is a d-powerful number, because it can be written as 7⁵ + 8 + 7⁸ + 8 + 8⁷ + 4³ + 3 .

It is not an unprimeable number, because it can be changed into a prime (7878841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20655 + ... + 21032.

It is an arithmetic number, because the mean of its divisors is an integer number (833760).

Almost surely, 2^7878843 is an apocalyptic number.

7878843 is a deficient number, since it is larger than the sum of its proper divisors (5461317).

7878843 is a wasteful number, since it uses less digits than its factorization.

7878843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41703 (or 41697 counting only the distinct ones).

The product of its digits is 301056, while the sum is 45.

The square root of 7878843 is about 2806.9276798664. The cubic root of 7878843 is about 198.9852181305.

The spelling of 7878843 in words is "seven million, eight hundred seventy-eight thousand, eight hundred forty-three".