47844947 has 2 divisors, whose sum is σ = 47844948. Its totient is φ = 47844946.

The previous prime is 47844941. The next prime is 47844961. The reversal of 47844947 is 74944874.

47844947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47844947 - 2¹⁶ = 47779411 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47844941) 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, 23922473 + 23922474.

It is an arithmetic number, because the mean of its divisors is an integer number (23922474).

Almost surely, 2^47844947 is an apocalyptic number.

47844947 is a deficient number, since it is larger than the sum of its proper divisors (1).

47844947 is an equidigital number, since it uses as much as digits as its factorization.

47844947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 903168, while the sum is 47.

The square root of 47844947 is about 6917.0041925678. The cubic root of 47844947 is about 363.0323770093.

The spelling of 47844947 in words is "forty-seven million, eight hundred forty-four thousand, nine hundred forty-seven".