7878546 has 96 divisors (see below), whose sum is σ = 20180160. Its totient is φ = 2286144.

The previous prime is 7878527. The next prime is 7878551. The reversal of 7878546 is 6458787.

7878546 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 183201 + ... + 183243.

It is an arithmetic number, because the mean of its divisors is an integer number (210210).

Almost surely, 2^7878546 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7878546, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10090080).

7878546 is an abundant number, since it is smaller than the sum of its proper divisors (12301614).

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

7878546 is a wasteful number, since it uses less digits than its factorization.

7878546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 90 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 7878546 is about 2806.8747745491. The cubic root of 7878546 is about 198.9827177908.

The spelling of 7878546 in words is "seven million, eight hundred seventy-eight thousand, five hundred forty-six".