7878328 has 32 divisors (see below), whose sum is σ = 15759360. Its totient is φ = 3683680.

The previous prime is 7878323. The next prime is 7878337. The reversal of 7878328 is 8238787.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7878323) 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, 8193 + ... + 9103.

It is an arithmetic number, because the mean of its divisors is an integer number (492480).

Almost surely, 2^7878328 is an apocalyptic number.

It is an amenable number.

7878328 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

7878328 is a wasteful number, since it uses less digits than its factorization.

7878328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987 (or 983 counting only the distinct ones).

The product of its digits is 150528, while the sum is 43.

The square root of 7878328 is about 2806.8359410553. The cubic root of 7878328 is about 198.9808824846.

The spelling of 7878328 in words is "seven million, eight hundred seventy-eight thousand, three hundred twenty-eight".