5147447 has 4 divisors (see below), whose sum is σ = 5450256. Its totient is φ = 4844640.

The previous prime is 5147431. The next prime is 5147479. The reversal of 5147447 is 7447415.

5147447 is digitally balanced in base 3, 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.

It is a cyclic number.

It is not a de Polignac number, because 5147447 - 2⁴ = 5147431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5147497) 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, 151379 + ... + 151412.

It is an arithmetic number, because the mean of its divisors is an integer number (1362564).

Almost surely, 2^5147447 is an apocalyptic number.

5147447 is a deficient number, since it is larger than the sum of its proper divisors (302809).

5147447 is a wasteful number, since it uses less digits than its factorization.

5147447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302808.

The product of its digits is 15680, while the sum is 32.

The square root of 5147447 is about 2268.7985807471. The cubic root of 5147447 is about 172.6622096678.

Subtracting from 5147447 its sum of digits (32), we obtain a palindrome (5147415).

Subtracting 5147447 from its reverse (7447415), we obtain a cube (2299968 = 132³).

The spelling of 5147447 in words is "five million, one hundred forty-seven thousand, four hundred forty-seven".