47066728 has 32 divisors (see below), whose sum is σ = 90034560. Its totient is φ = 23063040.

The previous prime is 47066687. The next prime is 47066731. The reversal of 47066728 is 82766074.

47066728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

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 7 ways as a sum of consecutive naturals, for example, 101425 + ... + 101887.

It is an arithmetic number, because the mean of its divisors is an integer number (2813580).

Almost surely, 2^47066728 is an apocalyptic number.

It is an amenable number.

47066728 is a deficient number, since it is larger than the sum of its proper divisors (42967832).

47066728 is a wasteful number, since it uses less digits than its factorization.

47066728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697 (or 693 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 47066728 is about 6860.5195138561. The cubic root of 47066728 is about 361.0533143073.

The spelling of 47066728 in words is "forty-seven million, sixty-six thousand, seven hundred twenty-eight".