47688228 has 36 divisors (see below), whose sum is σ = 137766720. Its totient is φ = 13625136.

The previous prime is 47688217. The next prime is 47688241. The reversal of 47688228 is 82288674.

It is a happy number.

47688228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 94368 + ... + 94871.

Almost surely, 2^47688228 is an apocalyptic number.

It is an amenable number.

47688228 is an abundant number, since it is smaller than the sum of its proper divisors (90078492).

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

47688228 is a wasteful number, since it uses less digits than its factorization.

47688228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189256 (or 189251 counting only the distinct ones).

The product of its digits is 344064, while the sum is 45.

The square root of 47688228 is about 6905.6663690045. Note that the first 3 decimals coincide. The cubic root of 47688228 is about 362.6355653086.

It can be divided in two parts, 4768 and 8228, that added together give a square (12996 = 114²).

The spelling of 47688228 in words is "forty-seven million, six hundred eighty-eight thousand, two hundred twenty-eight".