3910009 has 2 divisors, whose sum is σ = 3910010. Its totient is φ = 3910008.

The previous prime is 3910003. The next prime is 3910019. The reversal of 3910009 is 9000193.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3515625 + 394384 = 1875^2 + 628^2 .

It is an emirp because it is prime and its reverse (9000193) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3910009 - 2³ = 3910001 is a prime.

It is not a weakly prime, because it can be changed into another prime (3910001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1955004 + 1955005.

It is an arithmetic number, because the mean of its divisors is an integer number (1955005).

Almost surely, 2^3910009 is an apocalyptic number.

It is an amenable number.

3910009 is a deficient number, since it is larger than the sum of its proper divisors (1).

3910009 is an equidigital number, since it uses as much as digits as its factorization.

3910009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 243, while the sum is 22.

The square root of 3910009 is about 1977.3742690750. The cubic root of 3910009 is about 157.5406328354.

The spelling of 3910009 in words is "three million, nine hundred ten thousand, nine".