47748728 has 8 divisors (see below), whose sum is σ = 89528880. Its totient is φ = 23874360.

The previous prime is 47748721. The next prime is 47748737. The reversal of 47748728 is 82784774.

47748728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47748721) 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, 2984288 + ... + 2984303.

It is an arithmetic number, because the mean of its divisors is an integer number (11191110).

Almost surely, 2^47748728 is an apocalyptic number.

It is an amenable number.

47748728 is a deficient number, since it is larger than the sum of its proper divisors (41780152).

47748728 is a wasteful number, since it uses less digits than its factorization.

47748728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5968597 (or 5968593 counting only the distinct ones).

The product of its digits is 702464, while the sum is 47.

The square root of 47748728 is about 6910.0454412399. The cubic root of 47748728 is about 362.7888538753.

The spelling of 47748728 in words is "forty-seven million, seven hundred forty-eight thousand, seven hundred twenty-eight".