47847128 has 80 divisors (see below), whose sum is σ = 108902880. Its totient is φ = 19690944.

The previous prime is 47847127. The next prime is 47847131. The reversal of 47847128 is 82174874.

It is a happy number.

47847128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47847127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 902750 + ... + 902802.

It is an arithmetic number, because the mean of its divisors is an integer number (1361286).

Almost surely, 2^47847128 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 47847128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54451440).

47847128 is an abundant number, since it is smaller than the sum of its proper divisors (61055752).

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

47847128 is an equidigital number, since it uses as much as digits as its factorization.

47847128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134 (or 109 counting only the distinct ones).

The product of its digits is 100352, while the sum is 41.

The square root of 47847128 is about 6917.1618457283. The cubic root of 47847128 is about 363.0378931723.

The spelling of 47847128 in words is "forty-seven million, eight hundred forty-seven thousand, one hundred twenty-eight".