41578609 has 2 divisors, whose sum is σ = 41578610. Its totient is φ = 41578608.

The previous prime is 41578577. The next prime is 41578661. The reversal of 41578609 is 90687514.

41578609 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., 25200400 + 16378209 = 5020^2 + 4047^2 .

It is a cyclic number.

It is not a de Polignac number, because 41578609 - 2⁵ = 41578577 is a prime.

It is not a weakly prime, because it can be changed into another prime (41578679) 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, 20789304 + 20789305.

It is an arithmetic number, because the mean of its divisors is an integer number (20789305).

Almost surely, 2^41578609 is an apocalyptic number.

It is an amenable number.

41578609 is a deficient number, since it is larger than the sum of its proper divisors (1).

41578609 is an equidigital number, since it uses as much as digits as its factorization.

41578609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 41578609 is about 6448.1477185313. The cubic root of 41578609 is about 346.4362418234.

The spelling of 41578609 in words is "forty-one million, five hundred seventy-eight thousand, six hundred nine".