47738387 has 4 divisors (see below), whose sum is σ = 47752320. Its totient is φ = 47724456.

The previous prime is 47738377. The next prime is 47738389. The reversal of 47738387 is 78383774.

47738387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 47738387 - 2¹⁸ = 47476243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47738389) 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 3 ways as a sum of consecutive naturals, for example, 2153 + ... + 10005.

It is an arithmetic number, because the mean of its divisors is an integer number (11938080).

Almost surely, 2^47738387 is an apocalyptic number.

47738387 is a deficient number, since it is larger than the sum of its proper divisors (13933).

47738387 is an equidigital number, since it uses as much as digits as its factorization.

47738387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13932.

The product of its digits is 790272, while the sum is 47.

The square root of 47738387 is about 6909.2971422569. The cubic root of 47738387 is about 362.7626621102.

The spelling of 47738387 in words is "forty-seven million, seven hundred thirty-eight thousand, three hundred eighty-seven".