41984909 has 2 divisors, whose sum is σ = 41984910. Its totient is φ = 41984908.

The previous prime is 41984903. The next prime is 41984911. The reversal of 41984909 is 90948914.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41088100 + 896809 = 6410^2 + 947^2 .

It is a cyclic number.

It is not a de Polignac number, because 41984909 - 2⁴ = 41984893 is a prime.

Together with 41984911, it forms a pair of twin primes.

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 41984909.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41984903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20992454 + 20992455.

It is an arithmetic number, because the mean of its divisors is an integer number (20992455).

Almost surely, 2^41984909 is an apocalyptic number.

It is an amenable number.

41984909 is a deficient number, since it is larger than the sum of its proper divisors (1).

41984909 is an equidigital number, since it uses as much as digits as its factorization.

41984909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 41984909 is about 6479.5762978763. The cubic root of 41984909 is about 347.5610271854.

The spelling of 41984909 in words is "forty-one million, nine hundred eighty-four thousand, nine hundred nine".