39530489 has 2 divisors, whose sum is σ = 39530490. Its totient is φ = 39530488.

The previous prime is 39530483. The next prime is 39530497. The reversal of 39530489 is 98403593.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37112464 + 2418025 = 6092^2 + 1555^2 .

It is a cyclic number.

It is not a de Polignac number, because 39530489 - 2²⁰ = 38481913 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (39530483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19765244 + 19765245.

It is an arithmetic number, because the mean of its divisors is an integer number (19765245).

Almost surely, 2^39530489 is an apocalyptic number.

It is an amenable number.

39530489 is a deficient number, since it is larger than the sum of its proper divisors (1).

39530489 is an equidigital number, since it uses as much as digits as its factorization.

39530489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 39530489 is about 6287.3276517134. The cubic root of 39530489 is about 340.6518320080.

The spelling of 39530489 in words is "thirty-nine million, five hundred thirty thousand, four hundred eighty-nine".