47908013 has 2 divisors, whose sum is σ = 47908014. Its totient is φ = 47908012.

The previous prime is 47907991. The next prime is 47908019. The reversal of 47908013 is 31080974.

47908013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38775529 + 9132484 = 6227^2 + 3022^2 .

It is a cyclic number.

It is not a de Polignac number, because 47908013 - 2¹⁶ = 47842477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47908019) 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 as a sum of consecutive naturals, namely, 23954006 + 23954007.

It is an arithmetic number, because the mean of its divisors is an integer number (23954007).

Almost surely, 2^47908013 is an apocalyptic number.

It is an amenable number.

47908013 is a deficient number, since it is larger than the sum of its proper divisors (1).

47908013 is an equidigital number, since it uses as much as digits as its factorization.

47908013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 47908013 is about 6921.5614567813. The cubic root of 47908013 is about 363.1918152860.

Adding to 47908013 its reverse (31080974), we get a palindrome (78988987).

The spelling of 47908013 in words is "forty-seven million, nine hundred eight thousand, thirteen".