47728015 has 8 divisors (see below), whose sum is σ = 57324960. Its totient is φ = 38148192.

The previous prime is 47728001. The next prime is 47728049. The reversal of 47728015 is 51082774.

It is a happy number.

47728015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47728015 - 2¹³ = 47719823 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 2977 + ... + 10213.

It is an arithmetic number, because the mean of its divisors is an integer number (7165620).

Almost surely, 2^47728015 is an apocalyptic number.

47728015 is a deficient number, since it is larger than the sum of its proper divisors (9596945).

47728015 is a wasteful number, since it uses less digits than its factorization.

47728015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8561.

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 47728015 is about 6908.5465186246. The cubic root of 47728015 is about 362.7363880284.

The spelling of 47728015 in words is "forty-seven million, seven hundred twenty-eight thousand, fifteen".