47513839 has 16 divisors (see below), whose sum is σ = 50181120. Its totient is φ = 44946720.

The previous prime is 47513789. The next prime is 47513849. The reversal of 47513839 is 93831574.

47513839 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 a de Polignac number, because none of the positive numbers 2^k-47513839 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 (47513849) 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, 241089 + ... + 241285.

It is an arithmetic number, because the mean of its divisors is an integer number (3136320).

Almost surely, 2^47513839 is an apocalyptic number.

47513839 is a deficient number, since it is larger than the sum of its proper divisors (2667281).

47513839 is a wasteful number, since it uses less digits than its factorization.

47513839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390.

The product of its digits is 90720, while the sum is 40.

The square root of 47513839 is about 6893.0282895111. The cubic root of 47513839 is about 362.1929899998.

The spelling of 47513839 in words is "forty-seven million, five hundred thirteen thousand, eight hundred thirty-nine".