47471886 has 128 divisors (see below), whose sum is σ = 134784000. Its totient is φ = 12277440.

The previous prime is 47471863. The next prime is 47471887. The reversal of 47471886 is 68817474.

47471886 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Its product of digits (301056) is a multiple of the sum of its prime divisors (256).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47471887) 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 63 ways as a sum of consecutive naturals, for example, 203626 + ... + 203858.

It is an arithmetic number, because the mean of its divisors is an integer number (1053000).

Almost surely, 2^47471886 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47471886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67392000).

47471886 is an abundant number, since it is smaller than the sum of its proper divisors (87312114).

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

47471886 is a wasteful number, since it uses less digits than its factorization.

47471886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276 (or 256 counting only the distinct ones).

The product of its digits is 301056, while the sum is 45.

The square root of 47471886 is about 6889.9844702292. The cubic root of 47471886 is about 362.0863575094.

The spelling of 47471886 in words is "forty-seven million, four hundred seventy-one thousand, eight hundred eighty-six".