47310217 has 2 divisors, whose sum is σ = 47310218. Its totient is φ = 47310216.

The previous prime is 47310199. The next prime is 47310227. The reversal of 47310217 is 71201374.

It is a happy number.

47310217 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., 45643536 + 1666681 = 6756^2 + 1291^2 .

It is a cyclic number.

It is not a de Polignac number, because 47310217 - 2¹¹ = 47308169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47310191 and 47310200.

It is not a weakly prime, because it can be changed into another prime (47310227) 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, 23655108 + 23655109.

It is an arithmetic number, because the mean of its divisors is an integer number (23655109).

Almost surely, 2^47310217 is an apocalyptic number.

It is an amenable number.

47310217 is a deficient number, since it is larger than the sum of its proper divisors (1).

47310217 is an equidigital number, since it uses as much as digits as its factorization.

47310217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 47310217 is about 6878.2422900040. The cubic root of 47310217 is about 361.6748527764.

The spelling of 47310217 in words is "forty-seven million, three hundred ten thousand, two hundred seventeen".