3952009 has 2 divisors, whose sum is σ = 3952010. Its totient is φ = 3952008.

The previous prime is 3951989. The next prime is 3952027. The reversal of 3952009 is 9002593.

3952009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3433609 + 518400 = 1853^2 + 720^2 .

It is a cyclic number.

It is not a de Polignac number, because 3952009 - 2⁵ = 3951977 is a prime.

It is not a weakly prime, because it can be changed into another prime (3952079) 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, 1976004 + 1976005.

It is an arithmetic number, because the mean of its divisors is an integer number (1976005).

Almost surely, 2^3952009 is an apocalyptic number.

It is an amenable number.

3952009 is a deficient number, since it is larger than the sum of its proper divisors (1).

3952009 is an equidigital number, since it uses as much as digits as its factorization.

3952009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2430, while the sum is 28.

The square root of 3952009 is about 1987.9660459877. The cubic root of 3952009 is about 158.1027078825.

The spelling of 3952009 in words is "three million, nine hundred fifty-two thousand, nine".