47128 has 16 divisors (see below), whose sum is σ = 91080. Its totient is φ = 22848.

The previous prime is 47123. The next prime is 47129. The reversal of 47128 is 82174.

47128 is nontrivially palindromic in base 5.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 47099 and 47108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47123) by changing a digit.

47128 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, 276 + ... + 412.

2⁴⁷¹²⁸ is an apocalyptic number.

It is an amenable number.

47128 is a deficient number, since it is larger than the sum of its proper divisors (43952).

47128 is a wasteful number, since it uses less digits than its factorization.

47128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 182 counting only the distinct ones).

The product of its digits is 448, while the sum is 22.

The square root of 47128 is about 217.0898431526. The cubic root of 47128 is about 36.1209920802.

The spelling of 47128 in words is "forty-seven thousand, one hundred twenty-eight".