41989393 has 2 divisors, whose sum is σ = 41989394. Its totient is φ = 41989392.

The previous prime is 41989391. The next prime is 41989403. The reversal of 41989393 is 39398914.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41770369 + 219024 = 6463^2 + 468^2 .

It is a cyclic number.

It is not a de Polignac number, because 41989393 - 2¹ = 41989391 is a prime.

Together with 41989391, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (41989391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20994696 + 20994697.

It is an arithmetic number, because the mean of its divisors is an integer number (20994697).

Almost surely, 2^41989393 is an apocalyptic number.

It is an amenable number.

41989393 is a deficient number, since it is larger than the sum of its proper divisors (1).

41989393 is an equidigital number, since it uses as much as digits as its factorization.

41989393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209952, while the sum is 46.

The square root of 41989393 is about 6479.9222989169. The cubic root of 41989393 is about 347.5733999498.

It can be divided in two parts, 419893 and 93, that added together give a triangular number (419986 = T₉₁₆).

The spelling of 41989393 in words is "forty-one million, nine hundred eighty-nine thousand, three hundred ninety-three".