7873878 has 32 divisors (see below), whose sum is σ = 16200576. Its totient is φ = 2550528.

The previous prime is 7873871. The next prime is 7873897. The reversal of 7873878 is 8783787.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7873871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48225 + ... + 48387.

It is an arithmetic number, because the mean of its divisors is an integer number (506268).

Almost surely, 2^7873878 is an apocalyptic number.

7873878 is an abundant number, since it is smaller than the sum of its proper divisors (8326698).

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

7873878 is a wasteful number, since it uses less digits than its factorization.

7873878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348.

The product of its digits is 526848, while the sum is 48.

The square root of 7873878 is about 2806.0431215503. The cubic root of 7873878 is about 198.9434112642.

Subtracting 7873878 from its reverse (8783787), we obtain a palindrome (909909).

The spelling of 7873878 in words is "seven million, eight hundred seventy-three thousand, eight hundred seventy-eight".