39004109 has 2 divisors, whose sum is σ = 39004110. Its totient is φ = 39004108.

The previous prime is 39004087. The next prime is 39004127. The reversal of 39004109 is 90140093.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37478884 + 1525225 = 6122^2 + 1235^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39004109 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39004309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19502054 + 19502055.

It is an arithmetic number, because the mean of its divisors is an integer number (19502055).

Almost surely, 2^39004109 is an apocalyptic number.

It is an amenable number.

39004109 is a deficient number, since it is larger than the sum of its proper divisors (1).

39004109 is an equidigital number, since it uses as much as digits as its factorization.

39004109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 39004109 is about 6245.3269730255. The cubic root of 39004109 is about 339.1330537018.

The spelling of 39004109 in words is "thirty-nine million, four thousand, one hundred nine".