47281347 has 16 divisors (see below), whose sum is σ = 70670880. Its totient is φ = 31239936.

The previous prime is 47281331. The next prime is 47281349. The reversal of 47281347 is 74318274.

It is a happy number.

47281347 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47281347 - 2⁴ = 47281331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47281349) 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, 4698 + ... + 10799.

It is an arithmetic number, because the mean of its divisors is an integer number (4416930).

Almost surely, 2^47281347 is an apocalyptic number.

47281347 is a deficient number, since it is larger than the sum of its proper divisors (23389533).

47281347 is a wasteful number, since it uses less digits than its factorization.

47281347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15619 (or 15613 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 47281347 is about 6876.1433231136. The cubic root of 47281347 is about 361.6012698149.

The spelling of 47281347 in words is "forty-seven million, two hundred eighty-one thousand, three hundred forty-seven".