7855328 has 48 divisors (see below), whose sum is σ = 17400096. Its totient is φ = 3463680.

The previous prime is 7855321. The next prime is 7855333. The reversal of 7855328 is 8235587.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 7855291 and 7855300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7855321) 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, 9158 + ... + 9978.

It is an arithmetic number, because the mean of its divisors is an integer number (362502).

Almost surely, 2^7855328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7855328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8700048).

7855328 is an abundant number, since it is smaller than the sum of its proper divisors (9544768).

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

7855328 is a wasteful number, since it uses less digits than its factorization.

7855328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867 (or 859 counting only the distinct ones).

The product of its digits is 67200, while the sum is 38.

The square root of 7855328 is about 2802.7358063150. The cubic root of 7855328 is about 198.7870587384.

The spelling of 7855328 in words is "seven million, eight hundred fifty-five thousand, three hundred twenty-eight".