39894641 has 2 divisors, whose sum is σ = 39894642. Its totient is φ = 39894640.

The previous prime is 39894577. The next prime is 39894683. The reversal of 39894641 is 14649893.

39894641 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., 39639616 + 255025 = 6296^2 + 505^2 .

It is a cyclic number.

It is not a de Polignac number, because 39894641 - 2⁶ = 39894577 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 39894592 and 39894601.

It is not a weakly prime, because it can be changed into another prime (39894341) 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, 19947320 + 19947321.

It is an arithmetic number, because the mean of its divisors is an integer number (19947321).

Almost surely, 2^39894641 is an apocalyptic number.

It is an amenable number.

39894641 is a deficient number, since it is larger than the sum of its proper divisors (1).

39894641 is an equidigital number, since it uses as much as digits as its factorization.

39894641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 44.

The square root of 39894641 is about 6316.2204679697. The cubic root of 39894641 is about 341.6946563890.

The spelling of 39894641 in words is "thirty-nine million, eight hundred ninety-four thousand, six hundred forty-one".