66741347 has 2 divisors, whose sum is σ = 66741348. Its totient is φ = 66741346.

The previous prime is 66741329. The next prime is 66741359. The reversal of 66741347 is 74314766.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66741347 - 2¹⁴ = 66724963 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66741347.

It is not a weakly prime, because it can be changed into another prime (66741947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33370673 + 33370674.

It is an arithmetic number, because the mean of its divisors is an integer number (33370674).

Almost surely, 2^66741347 is an apocalyptic number.

66741347 is a deficient number, since it is larger than the sum of its proper divisors (1).

66741347 is an equidigital number, since it uses as much as digits as its factorization.

66741347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 38.

The square root of 66741347 is about 8169.5377470209. The cubic root of 66741347 is about 405.6314834953.

The spelling of 66741347 in words is "sixty-six million, seven hundred forty-one thousand, three hundred forty-seven".