41782217 has 2 divisors, whose sum is σ = 41782218. Its totient is φ = 41782216.

The previous prime is 41782199. The next prime is 41782229. The reversal of 41782217 is 71228714.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29278921 + 12503296 = 5411^2 + 3536^2 .

It is a cyclic number.

It is not a de Polignac number, because 41782217 - 2¹⁶ = 41716681 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (41782297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20891108 + 20891109.

It is an arithmetic number, because the mean of its divisors is an integer number (20891109).

Almost surely, 2^41782217 is an apocalyptic number.

It is an amenable number.

41782217 is a deficient number, since it is larger than the sum of its proper divisors (1).

41782217 is an equidigital number, since it uses as much as digits as its factorization.

41782217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6272, while the sum is 32.

The square root of 41782217 is about 6463.9165372087. The cubic root of 41782217 is about 347.0008138907. Note that the first 3 decimals are identical.

The spelling of 41782217 in words is "forty-one million, seven hundred eighty-two thousand, two hundred seventeen".