41681389 has 2 divisors, whose sum is σ = 41681390. Its totient is φ = 41681388.

The previous prime is 41681369. The next prime is 41681407. The reversal of 41681389 is 98318614.

41681389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36505764 + 5175625 = 6042^2 + 2275^2 .

It is a cyclic number.

It is not a de Polignac number, because 41681389 - 2⁷ = 41681261 is a prime.

It is a super-3 number, since 3×41681389³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41681309) 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, 20840694 + 20840695.

It is an arithmetic number, because the mean of its divisors is an integer number (20840695).

Almost surely, 2^41681389 is an apocalyptic number.

It is an amenable number.

41681389 is a deficient number, since it is larger than the sum of its proper divisors (1).

41681389 is an equidigital number, since it uses as much as digits as its factorization.

41681389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 40.

The square root of 41681389 is about 6456.1125299982. The cubic root of 41681389 is about 346.7214639504.

The spelling of 41681389 in words is "forty-one million, six hundred eighty-one thousand, three hundred eighty-nine".