47039428 has 6 divisors (see below), whose sum is σ = 82319006. Its totient is φ = 23519712.

The previous prime is 47039401. The next prime is 47039429. The reversal of 47039428 is 82493074.

It is a happy number.

47039428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 43007364 + 4032064 = 6558^2 + 2008^2 .

It is not an unprimeable number, because it can be changed into a prime (47039429) by changing a digit.

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 as a sum of consecutive naturals, namely, 5879925 + ... + 5879932.

Almost surely, 2^47039428 is an apocalyptic number.

It is an amenable number.

47039428 is a deficient number, since it is larger than the sum of its proper divisors (35279578).

47039428 is a wasteful number, since it uses less digits than its factorization.

47039428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11759861 (or 11759859 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 47039428 is about 6858.5295800193. The cubic root of 47039428 is about 360.9834938471.

The spelling of 47039428 in words is "forty-seven million, thirty-nine thousand, four hundred twenty-eight".