47128824 has 64 divisors (see below), whose sum is σ = 134474400. Its totient is φ = 15282432.

The previous prime is 47128801. The next prime is 47128831. The reversal of 47128824 is 42882174.

47128824 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×47128824² = 4442252103245952, which contains 22 as substring.

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

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 5044 + ... + 10940.

Almost surely, 2^47128824 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 47128824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67237200).

47128824 is an abundant number, since it is smaller than the sum of its proper divisors (87345576).

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

47128824 is a wasteful number, since it uses less digits than its factorization.

47128824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5949 (or 5939 counting only the distinct ones).

The product of its digits is 28672, while the sum is 36.

The square root of 47128824 is about 6865.0436269553. The cubic root of 47128824 is about 361.2120259569.

The spelling of 47128824 in words is "forty-seven million, one hundred twenty-eight thousand, eight hundred twenty-four".