47850217 has 2 divisors, whose sum is σ = 47850218. Its totient is φ = 47850216.

The previous prime is 47850211. The next prime is 47850233. The reversal of 47850217 is 71205874.

It is a happy number.

47850217 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 can be written as a sum of positive squares in only one way, i.e., 47596201 + 254016 = 6899^2 + 504^2 .

It is a cyclic number.

It is not a de Polignac number, because 47850217 - 2¹¹ = 47848169 is a prime.

It is not a weakly prime, because it can be changed into another prime (47850211) 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, 23925108 + 23925109.

It is an arithmetic number, because the mean of its divisors is an integer number (23925109).

Almost surely, 2^47850217 is an apocalyptic number.

It is an amenable number.

47850217 is a deficient number, since it is larger than the sum of its proper divisors (1).

47850217 is an equidigital number, since it uses as much as digits as its factorization.

47850217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 47850217 is about 6917.3851273440. The cubic root of 47850217 is about 363.0457055529.

The spelling of 47850217 in words is "forty-seven million, eight hundred fifty thousand, two hundred seventeen".