41640811 has 2 divisors, whose sum is σ = 41640812. Its totient is φ = 41640810.

The previous prime is 41640779. The next prime is 41640827. The reversal of 41640811 is 11804614.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 41640811 - 2⁵ = 41640779 is a prime.

It is not a weakly prime, because it can be changed into another prime (41640611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20820405 + 20820406.

It is an arithmetic number, because the mean of its divisors is an integer number (20820406).

Almost surely, 2^41640811 is an apocalyptic number.

41640811 is a deficient number, since it is larger than the sum of its proper divisors (1).

41640811 is an equidigital number, since it uses as much as digits as its factorization.

41640811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 41640811 is about 6452.9691615566. The cubic root of 41640811 is about 346.6089130655.

The spelling of 41640811 in words is "forty-one million, six hundred forty thousand, eight hundred eleven".