47383987 has 16 divisors (see below), whose sum is σ = 56028672. Its totient is φ = 39228480.

The previous prime is 47383969. The next prime is 47383991. The reversal of 47383987 is 78938374.

47383987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 47383987 - 2¹⁵ = 47351219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47383987.

It is not an unprimeable number, because it can be changed into a prime (47383927) 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 in 15 ways as a sum of consecutive naturals, for example, 29938 + ... + 31480.

It is an arithmetic number, because the mean of its divisors is an integer number (3501792).

Almost surely, 2^47383987 is an apocalyptic number.

47383987 is a deficient number, since it is larger than the sum of its proper divisors (8644685).

47383987 is a wasteful number, since it uses less digits than its factorization.

47383987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1698.

The product of its digits is 1016064, while the sum is 49.

The square root of 47383987 is about 6883.6027630885. The cubic root of 47383987 is about 361.8627395935.

The spelling of 47383987 in words is "forty-seven million, three hundred eighty-three thousand, nine hundred eighty-seven".