39366641 has 2 divisors, whose sum is σ = 39366642. Its totient is φ = 39366640.

The previous prime is 39366599. The next prime is 39366643. The reversal of 39366641 is 14666393.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27081616 + 12285025 = 5204^2 + 3505^2 .

It is a cyclic number.

It is not a de Polignac number, because 39366641 - 2¹⁸ = 39104497 is a prime.

Together with 39366643, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 39366595 and 39366604.

It is not a weakly prime, because it can be changed into another prime (39366643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19683320 + 19683321.

It is an arithmetic number, because the mean of its divisors is an integer number (19683321).

Almost surely, 2^39366641 is an apocalyptic number.

It is an amenable number.

39366641 is a deficient number, since it is larger than the sum of its proper divisors (1).

39366641 is an equidigital number, since it uses as much as digits as its factorization.

39366641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 38.

The square root of 39366641 is about 6274.2841025889. The cubic root of 39366641 is about 340.1805298480.

The spelling of 39366641 in words is "thirty-nine million, three hundred sixty-six thousand, six hundred forty-one".