7847331228 has 72 divisors (see below), whose sum is σ = 21661960320. Its totient is φ = 2375523360.

The previous prime is 7847331211. The next prime is 7847331259. The reversal of 7847331228 is 8221337487.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 393801 + ... + 413247.

It is an arithmetic number, because the mean of its divisors is an integer number (300860560).

Almost surely, 2^7847331228 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 7847331228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10830980160).

7847331228 is an abundant number, since it is smaller than the sum of its proper divisors (13814629092).

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

7847331228 is a wasteful number, since it uses less digits than its factorization.

7847331228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20487 (or 20482 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 7847331228 is about 88585.1637013783. The cubic root of 7847331228 is about 1987.1958035445.

The spelling of 7847331228 in words is "seven billion, eight hundred forty-seven million, three hundred thirty-one thousand, two hundred twenty-eight".