39848009 has 2 divisors, whose sum is σ = 39848010. Its totient is φ = 39848008.

The previous prime is 39847991. The next prime is 39848027. The reversal of 39848009 is 90084893.

It is a balanced prime because it is at equal distance from previous prime (39847991) and next prime (39848027).

It can be written as a sum of positive squares in only one way, i.e., 34339600 + 5508409 = 5860^2 + 2347^2 .

It is a cyclic number.

It is not a de Polignac number, because 39848009 - 2²⁰ = 38799433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (39848089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19924004 + 19924005.

It is an arithmetic number, because the mean of its divisors is an integer number (19924005).

Almost surely, 2^39848009 is an apocalyptic number.

It is an amenable number.

39848009 is a deficient number, since it is larger than the sum of its proper divisors (1).

39848009 is an equidigital number, since it uses as much as digits as its factorization.

39848009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 39848009 is about 6312.5279405322. The cubic root of 39848009 is about 341.5614712701.

The spelling of 39848009 in words is "thirty-nine million, eight hundred forty-eight thousand, nine".