39530641 has 2 divisors, whose sum is σ = 39530642. Its totient is φ = 39530640.

The previous prime is 39530609. The next prime is 39530651. The reversal of 39530641 is 14603593.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36000000 + 3530641 = 6000^2 + 1879^2 .

It is an emirp because it is prime and its reverse (14603593) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39530641 - 2⁵ = 39530609 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (39530651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19765320 + 19765321.

It is an arithmetic number, because the mean of its divisors is an integer number (19765321).

Almost surely, 2^39530641 is an apocalyptic number.

It is an amenable number.

39530641 is a deficient number, since it is larger than the sum of its proper divisors (1).

39530641 is an equidigital number, since it uses as much as digits as its factorization.

39530641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 39530641 is about 6287.3397395083. The cubic root of 39530641 is about 340.6522686247.

The spelling of 39530641 in words is "thirty-nine million, five hundred thirty thousand, six hundred forty-one".