47928 has 16 divisors (see below), whose sum is σ = 119880. Its totient is φ = 15968.

The previous prime is 47917. The next prime is 47933. The reversal of 47928 is 82974.

It is a d-powerful number, because it can be written as 4³ + 7³ + 9⁴ + 2¹³ + 8⁵ .

It is a junction number, because it is equal to n+sod(n) for n = 47895 and 47904.

It is a congruent number.

It is an unprimeable number.

47928 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 975 + ... + 1022.

2⁴⁷⁹²⁸ is an apocalyptic number.

It is an amenable number.

47928 is an abundant number, since it is smaller than the sum of its proper divisors (71952).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59940).

47928 is a wasteful number, since it uses less digits than its factorization.

47928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006 (or 2002 counting only the distinct ones).

The product of its digits is 4032, while the sum is 30.

The square root of 47928 is about 218.9246445698. The cubic root of 47928 is about 36.3242315575.

The spelling of 47928 in words is "forty-seven thousand, nine hundred twenty-eight".