47710728 has 96 divisors (see below), whose sum is σ = 143618400. Its totient is φ = 14668992.

The previous prime is 47710699. The next prime is 47710739. The reversal of 47710728 is 82701774.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 47710692 and 47710701.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35851 + ... + 37157.

It is an arithmetic number, because the mean of its divisors is an integer number (1496025).

Almost surely, 2^47710728 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 47710728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71809200).

47710728 is an abundant number, since it is smaller than the sum of its proper divisors (95907672).

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

47710728 is a wasteful number, since it uses less digits than its factorization.

47710728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348 (or 1325 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 36.

The square root of 47710728 is about 6907.2952738391. The cubic root of 47710728 is about 362.6925885871.

The spelling of 47710728 in words is "forty-seven million, seven hundred ten thousand, seven hundred twenty-eight".