47040913 has 4 divisors (see below), whose sum is σ = 47054848. Its totient is φ = 47026980.

The previous prime is 47040907. The next prime is 47040947. The reversal of 47040913 is 31904074.

47040913 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 Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 31904074 = 2 ⋅15952037.

It is a cyclic number.

It is not a de Polignac number, because 47040913 - 2⁵ = 47040881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47040953) 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, 1648 + ... + 9838.

It is an arithmetic number, because the mean of its divisors is an integer number (11763712).

Almost surely, 2^47040913 is an apocalyptic number.

It is an amenable number.

47040913 is a deficient number, since it is larger than the sum of its proper divisors (13935).

47040913 is an equidigital number, since it uses as much as digits as its factorization.

47040913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13934.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 47040913 is about 6858.6378385216. The cubic root of 47040913 is about 360.9872924679.

Adding to 47040913 its reverse (31904074), we get a palindrome (78944987).

The spelling of 47040913 in words is "forty-seven million, forty thousand, nine hundred thirteen".