47230217 has 2 divisors, whose sum is σ = 47230218. Its totient is φ = 47230216.

The previous prime is 47230193. The next prime is 47230223. The reversal of 47230217 is 71203274.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39300361 + 7929856 = 6269^2 + 2816^2 .

It is a cyclic number.

It is not a de Polignac number, because 47230217 - 2¹⁴ = 47213833 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47230277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23615108 + 23615109.

It is an arithmetic number, because the mean of its divisors is an integer number (23615109).

Almost surely, 2^47230217 is an apocalyptic number.

It is an amenable number.

47230217 is a deficient number, since it is larger than the sum of its proper divisors (1).

47230217 is an equidigital number, since it uses as much as digits as its factorization.

47230217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 47230217 is about 6872.4243902716. The cubic root of 47230217 is about 361.4708777212.

The spelling of 47230217 in words is "forty-seven million, two hundred thirty thousand, two hundred seventeen".